--- /dev/null
+/* ported from ctfb.c (linux kernel):
+ * Created in Jan - July 2000 by Thomas Höhenleitner <th@visuelle-maschinen.de>
+ *
+ * Ported to U-Boot:
+ * (C) Copyright 2002 Denis Peter, MPL AG Switzerland
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_VIDEO
+
+#include <pci.h>
+#include <video_fb.h>
+#include "videomodes.h"
+
+/* debug */
+#undef VGA_DEBUG
+#undef VGA_DUMP_REG
+#ifdef VGA_DEBUG
+#undef _DEBUG
+#define _DEBUG 1
+#else
+#undef _DEBUG
+#define _DEBUG 0
+#endif
+
+/* Macros */
+#ifndef min
+#define min( a, b ) ( ( a ) < ( b ) ) ? ( a ) : ( b )
+#endif
+#ifndef max
+#define max( a, b ) ( ( a ) > ( b ) ) ? ( a ) : ( b )
+#endif
+#ifdef minmax
+#error "term minmax already used."
+#endif
+#define minmax( a, x, b ) max( ( a ), min( ( x ), ( b ) ) )
+#define N_ELTS( x ) ( sizeof( x ) / sizeof( x[ 0 ] ) )
+
+/* CT Register Offsets */
+#define CT_AR_O 0x3c0 /* Index and Data write port of the attribute Registers */
+#define CT_GR_O 0x3ce /* Index port of the Graphic Controller Registers */
+#define CT_SR_O 0x3c4 /* Index port of the Sequencer Controller */
+#define CT_CR_O 0x3d4 /* Index port of the CRT Controller */
+#define CT_XR_O 0x3d6 /* Extended Register index */
+#define CT_MSR_W_O 0x3c2 /* Misc. Output Register (write only) */
+#define CT_LUT_MASK_O 0x3c6 /* Color Palette Mask */
+#define CT_LUT_START_O 0x3c8 /* Color Palette Write Mode Index */
+#define CT_LUT_RGB_O 0x3c9 /* Color Palette Data Port */
+#define CT_STATUS_REG0_O 0x3c2 /* Status Register 0 (read only) */
+#define CT_STATUS_REG1_O 0x3da /* Input Status Register 1 (read only) */
+
+#define CT_FP_O 0x3d0 /* Index port of the Flat panel Registers */
+#define CT_MR_O 0x3d2 /* Index Port of the Multimedia Extension */
+
+/* defines for the memory mapped registers */
+#define BR00_o 0x400000 /* Source and Destination Span Register */
+#define BR01_o 0x400004 /* Pattern/Source Expansion Background Color & Transparency Key Register */
+#define BR02_o 0x400008 /* Pattern/Source Expansion Foreground Color Register */
+#define BR03_o 0x40000C /* Monochrome Source Control Register */
+#define BR04_o 0x400010 /* BitBLT Control Register */
+#define BR05_o 0x400014 /* Pattern Address Registe */
+#define BR06_o 0x400018 /* Source Address Register */
+#define BR07_o 0x40001C /* Destination Address Register */
+#define BR08_o 0x400020 /* Destination Width & Height Register */
+#define BR09_o 0x400024 /* Source Expansion Background Color & Transparency Key Register */
+#define BR0A_o 0x400028 /* Source Expansion Foreground Color Register */
+
+#define CURSOR_SIZE 0x1000 /* in KByte for HW Cursor */
+#define PATTERN_ADR (pGD->dprBase + CURSOR_SIZE) /* pattern Memory after Cursor Memory */
+#define PATTERN_SIZE 8*8*4 /* 4 Bytes per Pixel 8 x 8 Pixel */
+#define ACCELMEMORY (CURSOR_SIZE + PATTERN_SIZE) /* reserved Memory for BITBlt and hw cursor */
+
+/* Some Mode definitions */
+#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
+#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
+#define FB_SYNC_EXT 4 /* external sync */
+#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
+#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
+ /* vtotal = 144d/288n/576i => PAL */
+ /* vtotal = 121d/242n/484i => NTSC */
+#define FB_SYNC_ON_GREEN 32 /* sync on green */
+
+#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
+#define FB_VMODE_INTERLACED 1 /* interlaced */
+#define FB_VMODE_DOUBLE 2 /* double scan */
+#define FB_VMODE_MASK 255
+
+#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
+#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
+#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
+
+#define text 0
+#define fntwidth 8
+
+/* table for VGA Initialization */
+typedef struct {
+ const unsigned char reg;
+ const unsigned char val;
+} CT_CFG_TABLE;
+
+/* this table provides some basic initialisations such as Memory Clock etc */
+static CT_CFG_TABLE xreg[] = {
+ {0x09, 0x01}, /* CRT Controller Extensions Enable */
+ {0x0A, 0x02}, /* Frame Buffer Mapping */
+ {0x0B, 0x01}, /* PCI Write Burst support */
+ {0x20, 0x00}, /* BitBLT Configuration */
+ {0x40, 0x03}, /* Memory Access Control */
+ {0x60, 0x00}, /* Video Pin Control */
+ {0x61, 0x00}, /* DPMS Synch control */
+ {0x62, 0x00}, /* GPIO Pin Control */
+ {0x63, 0xBD}, /* GPIO Pin Data */
+ {0x67, 0x00}, /* Pin Tri-State */
+ {0x80, 0x80}, /* Pixel Pipeline Config 0 register */
+ {0xA0, 0x00}, /* Cursor 1 Control Reg */
+ {0xA1, 0x00}, /* Cursor 1 Vertical Extension Reg */
+ {0xA2, 0x00}, /* Cursor 1 Base Address Low */
+ {0xA3, 0x00}, /* Cursor 1 Base Address High */
+ {0xA4, 0x00}, /* Cursor 1 X-Position Low */
+ {0xA5, 0x00}, /* Cursor 1 X-Position High */
+ {0xA6, 0x00}, /* Cursor 1 Y-Position Low */
+ {0xA7, 0x00}, /* Cursor 1 Y-Position High */
+ {0xA8, 0x00}, /* Cursor 2 Control Reg */
+ {0xA9, 0x00}, /* Cursor 2 Vertical Extension Reg */
+ {0xAA, 0x00}, /* Cursor 2 Base Address Low */
+ {0xAB, 0x00}, /* Cursor 2 Base Address High */
+ {0xAC, 0x00}, /* Cursor 2 X-Position Low */
+ {0xAD, 0x00}, /* Cursor 2 X-Position High */
+ {0xAE, 0x00}, /* Cursor 2 Y-Position Low */
+ {0xAF, 0x00}, /* Cursor 2 Y-Position High */
+ {0xC0, 0x7D}, /* Dot Clock 0 VCO M-Divisor */
+ {0xC1, 0x07}, /* Dot Clock 0 VCO N-Divisor */
+ {0xC3, 0x34}, /* Dot Clock 0 Divisor select */
+ {0xC4, 0x55}, /* Dot Clock 1 VCO M-Divisor */
+ {0xC5, 0x09}, /* Dot Clock 1 VCO N-Divisor */
+ {0xC7, 0x24}, /* Dot Clock 1 Divisor select */
+ {0xC8, 0x7D}, /* Dot Clock 2 VCO M-Divisor */
+ {0xC9, 0x07}, /* Dot Clock 2 VCO N-Divisor */
+ {0xCB, 0x34}, /* Dot Clock 2 Divisor select */
+ {0xCC, 0x38}, /* Memory Clock 0 VCO M-Divisor */
+ {0xCD, 0x03}, /* Memory Clock 0 VCO N-Divisor */
+ {0xCE, 0x90}, /* Memory Clock 0 Divisor select */
+ {0xCF, 0x06}, /* Clock Config */
+ {0xD0, 0x0F}, /* Power Down */
+ {0xD1, 0x01}, /* Power Down BitBLT */
+ {0xFF, 0xFF} /* end of table */
+};
+/* Clock Config:
+ * =============
+ *
+ * PD Registers:
+ * -------------
+ * Bit2 and Bit4..6 are used for the Loop Divisor and Post Divisor.
+ * They are encoded as follows:
+ *
+ * +---+--------------+
+ * | 2 | Loop Divisor |
+ * +---+--------------+
+ * | 1 | 1 |
+ * +---+--------------+
+ * | 0 | 4 |
+ * +---+--------------+
+ * Note: The Memory Clock does not have a Loop Divisor.
+ * +---+---+---+--------------+
+ * | 6 | 5 | 4 | Post Divisor |
+ * +---+---+---+--------------+
+ * | 0 | 0 | 0 | 1 |
+ * +---+---+---+--------------+
+ * | 0 | 0 | 1 | 2 |
+ * +---+---+---+--------------+
+ * | 0 | 1 | 0 | 4 |
+ * +---+---+---+--------------+
+ * | 0 | 1 | 1 | 8 |
+ * +---+---+---+--------------+
+ * | 1 | 0 | 0 | 16 |
+ * +---+---+---+--------------+
+ * | 1 | 0 | 1 | 32 |
+ * +---+---+---+--------------+
+ * | 1 | 1 | X | reserved |
+ * +---+---+---+--------------+
+ *
+ * All other bits are reserved in these registers.
+ *
+ * Clock VCO M Registers:
+ * ----------------------
+ * These Registers contain the M Value -2.
+ *
+ * Clock VCO N Registers:
+ * ----------------------
+ * These Registers contain the N Value -2.
+ *
+ * Formulas:
+ * ---------
+ * Fvco = (Fref * Loop Divisor * M/N), whereas 100MHz < Fvco < 220MHz
+ * Fout = Fvco / Post Divisor
+ *
+ * Dot Clk0 (default 25MHz):
+ * -------------------------
+ * Fvco = 14.318 * 127 / 9 = 202.045MHz
+ * Fout = 202.045MHz / 8 = 25.25MHz
+ * Post Divisor = 8
+ * Loop Divisor = 1
+ * XRC0 = (M - 2) = 125 = 0x7D
+ * XRC1 = (N - 2) = 7 = 0x07
+ * XRC3 = 0x34
+ *
+ * Dot Clk1 (default 28MHz):
+ * -------------------------
+ * Fvco = 14.318 * 87 / 11 = 113.24MHz
+ * Fout = 113.24MHz / 4 = 28.31MHz
+ * Post Divisor = 4
+ * Loop Divisor = 1
+ * XRC4 = (M - 2) = 85 = 0x55
+ * XRC5 = (N - 2) = 9 = 0x09
+ * XRC7 = 0x24
+ *
+ * Dot Clk2 (variable for extended modes set to 25MHz):
+ * ----------------------------------------------------
+ * Fvco = 14.318 * 127 / 9 = 202.045MHz
+ * Fout = 202.045MHz / 8 = 25.25MHz
+ * Post Divisor = 8
+ * Loop Divisor = 1
+ * XRC8 = (M - 2) = 125 = 0x7D
+ * XRC9 = (N - 2) = 7 = 0x07
+ * XRCB = 0x34
+ *
+ * Memory Clk for most modes >50MHz:
+ * ----------------------------------
+ * Fvco = 14.318 * 58 / 5 = 166MHz
+ * Fout = 166MHz / 2 = 83MHz
+ * Post Divisor = 2
+ * XRCC = (M - 2) = 57 = 0x38
+ * XRCD = (N - 2) = 3 = 0x03
+ * XRCE = 0x90
+ *
+ * Note Bit7 enables the clock source from the VCO
+ *
+ */
+
+/*******************************************************************
+ * Chips struct
+ *******************************************************************/
+struct ctfb_chips_properties {
+ int device_id; /* PCI Device ID */
+ unsigned long max_mem; /* memory for frame buffer */
+ int vld_set; /* value of VLD if bit2 in clock control is set */
+ int vld_not_set; /* value of VLD if bit2 in clock control is set */
+ int mn_diff; /* difference between M/N Value + mn_diff = M/N Register */
+ int mn_min; /* min value of M/N Value */
+ int mn_max; /* max value of M/N Value */
+ int vco_min; /* VCO Min in MHz */
+ int vco_max; /* VCO Max in MHz */
+};
+
+static const struct ctfb_chips_properties chips[] = {
+ {PCI_DEVICE_ID_CT_69000, 0x200000, 1, 4, -2, 3, 257, 100, 220},
+#ifdef CONFIG_USE_CPCIDVI
+ {PCI_DEVICE_ID_CT_69030, 0x400000, 1, 4, -2, 3, 257, 100, 220},
+#endif
+ {PCI_DEVICE_ID_CT_65555, 0x100000, 16, 4, 0, 1, 255, 48, 220}, /* NOT TESTED */
+ {0, 0, 0, 0, 0, 0, 0, 0, 0} /* Terminator */
+};
+
+/*
+ * The Graphic Device
+ */
+GraphicDevice ctfb;
+
+/*******************************************************************************
+*
+* Low Level Routines
+*/
+
+/*******************************************************************************
+*
+* Read CT ISA register
+*/
+#ifdef VGA_DEBUG
+static unsigned char
+ctRead (unsigned short index)
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ if (index == CT_AR_O)
+ /* synch the Flip Flop */
+ in8 (pGD->isaBase + CT_STATUS_REG1_O);
+
+ return (in8 (pGD->isaBase + index));
+}
+#endif
+/*******************************************************************************
+*
+* Write CT ISA register
+*/
+static void
+ctWrite (unsigned short index, unsigned char val)
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+
+ out8 ((pGD->isaBase + index), val);
+}
+
+/*******************************************************************************
+*
+* Read CT ISA register indexed
+*/
+static unsigned char
+ctRead_i (unsigned short index, char reg)
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ if (index == CT_AR_O)
+ /* synch the Flip Flop */
+ in8 (pGD->isaBase + CT_STATUS_REG1_O);
+ out8 ((pGD->isaBase + index), reg);
+ return (in8 (pGD->isaBase + index + 1));
+}
+
+/*******************************************************************************
+*
+* Write CT ISA register indexed
+*/
+static void
+ctWrite_i (unsigned short index, char reg, char val)
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ if (index == CT_AR_O) {
+ /* synch the Flip Flop */
+ in8 (pGD->isaBase + CT_STATUS_REG1_O);
+ out8 ((pGD->isaBase + index), reg);
+ out8 ((pGD->isaBase + index), val);
+ } else {
+ out8 ((pGD->isaBase + index), reg);
+ out8 ((pGD->isaBase + index + 1), val);
+ }
+}
+
+/*******************************************************************************
+*
+* Write a table of CT ISA register
+*/
+static void
+ctLoadRegs (unsigned short index, CT_CFG_TABLE * regTab)
+{
+ while (regTab->reg != 0xFF) {
+ ctWrite_i (index, regTab->reg, regTab->val);
+ regTab++;
+ }
+}
+
+/*****************************************************************************/
+static void
+SetArRegs (void)
+{
+ int i, tmp;
+
+ for (i = 0; i < 0x10; i++)
+ ctWrite_i (CT_AR_O, i, i);
+ if (text)
+ tmp = 0x04;
+ else
+ tmp = 0x41;
+
+ ctWrite_i (CT_AR_O, 0x10, tmp); /* Mode Control Register */
+ ctWrite_i (CT_AR_O, 0x11, 0x00); /* Overscan Color Register */
+ ctWrite_i (CT_AR_O, 0x12, 0x0f); /* Memory Plane Enable Register */
+ if (fntwidth == 9)
+ tmp = 0x08;
+ else
+ tmp = 0x00;
+ ctWrite_i (CT_AR_O, 0x13, tmp); /* Horizontal Pixel Panning */
+ ctWrite_i (CT_AR_O, 0x14, 0x00); /* Color Select Register */
+ ctWrite (CT_AR_O, 0x20); /* enable video */
+}
+
+/*****************************************************************************/
+static void
+SetGrRegs (void)
+{ /* Set Graphics Mode */
+ int i;
+
+ for (i = 0; i < 0x05; i++)
+ ctWrite_i (CT_GR_O, i, 0);
+ if (text) {
+ ctWrite_i (CT_GR_O, 0x05, 0x10);
+ ctWrite_i (CT_GR_O, 0x06, 0x02);
+ } else {
+ ctWrite_i (CT_GR_O, 0x05, 0x40);
+ ctWrite_i (CT_GR_O, 0x06, 0x05);
+ }
+ ctWrite_i (CT_GR_O, 0x07, 0x0f);
+ ctWrite_i (CT_GR_O, 0x08, 0xff);
+}
+
+/*****************************************************************************/
+static void
+SetSrRegs (void)
+{
+ int tmp = 0;
+
+ ctWrite_i (CT_SR_O, 0x00, 0x00); /* reset */
+ /*rr( sr, 0x01, tmp );
+ if( fntwidth == 8 ) tmp |= 0x01; else tmp &= ~0x01;
+ wr( sr, 0x01, tmp ); */
+ if (fntwidth == 8)
+ ctWrite_i (CT_SR_O, 0x01, 0x01); /* Clocking Mode Register */
+ else
+ ctWrite_i (CT_SR_O, 0x01, 0x00); /* Clocking Mode Register */
+ ctWrite_i (CT_SR_O, 0x02, 0x0f); /* Enable CPU wr access to given memory plane */
+ ctWrite_i (CT_SR_O, 0x03, 0x00); /* Character Map Select Register */
+ if (text)
+ tmp = 0x02;
+ else
+ tmp = 0x0e;
+ ctWrite_i (CT_SR_O, 0x04, tmp); /* Enable CPU accesses to the rest of the 256KB
+ total VGA memory beyond the first 64KB and set
+ fb mapping mode. */
+ ctWrite_i (CT_SR_O, 0x00, 0x03); /* enable */
+}
+
+/*****************************************************************************/
+static void
+SetBitsPerPixelIntoXrRegs (int bpp)
+{
+ unsigned int n = (bpp >> 3), tmp; /* only for 15, 8, 16, 24 bpp */
+ static char md[4] = { 0x04, 0x02, 0x05, 0x06 }; /* DisplayColorMode */
+ static char off[4] = { ~0x20, ~0x30, ~0x20, ~0x10 }; /* mask */
+ static char on[4] = { 0x10, 0x00, 0x10, 0x20 }; /* mask */
+ if (bpp == 15)
+ n = 0;
+ tmp = ctRead_i (CT_XR_O, 0x20);
+ tmp &= off[n];
+ tmp |= on[n];
+ ctWrite_i (CT_XR_O, 0x20, tmp); /* BitBLT Configuration */
+ ctWrite_i (CT_XR_O, 0x81, md[n]);
+}
+
+/*****************************************************************************/
+static void
+SetCrRegs (struct ctfb_res_modes *var, int bits_per_pixel)
+{ /* he -le- ht|0 hd -ri- hs -h- he */
+ unsigned char cr[0x7a];
+ int i, tmp;
+ unsigned int hd, hs, he, ht, hbe; /* Horizontal. */
+ unsigned int vd, vs, ve, vt; /* vertical */
+ unsigned int bpp, wd, dblscan, interlaced, bcast, CrtHalfLine;
+ unsigned int CompSyncCharClkDelay, CompSyncPixelClkDelay;
+ unsigned int NTSC_PAL_HorizontalPulseWidth, BlDelayCtrl;
+ unsigned int HorizontalEqualizationPulses;
+ unsigned int HorizontalSerration1Start, HorizontalSerration2Start;
+
+ const int LineCompare = 0x3ff;
+ unsigned int TextScanLines = 1; /* this is in fact a vertical zoom factor */
+ unsigned int RAMDAC_BlankPedestalEnable = 0; /* 1=en-, 0=disable, see XR82 */
+
+ 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 */
+ hbe = ht - 1; /* HBlankEnable todo docu wants ht here, but it does not work */
+ /* ve -up- vt|0 vd -lo- vs -v- ve */
+ 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 */
+ bpp = bits_per_pixel;
+ dblscan = (var->vmode & FB_VMODE_DOUBLE) ? 1 : 0;
+ interlaced = var->vmode & FB_VMODE_INTERLACED;
+ bcast = var->sync & FB_SYNC_BROADCAST;
+ CrtHalfLine = bcast ? (hd >> 1) : 0;
+ BlDelayCtrl = bcast ? 1 : 0;
+ CompSyncCharClkDelay = 0; /* 2 bit */
+ CompSyncPixelClkDelay = 0; /* 3 bit */
+ if (bcast) {
+ NTSC_PAL_HorizontalPulseWidth = 7; /*( var->hsync_len >> 1 ) + 1 */
+ HorizontalEqualizationPulses = 0; /* inverse value */
+ HorizontalSerration1Start = 31; /* ( ht >> 1 ) */
+ HorizontalSerration2Start = 89; /* ( ht >> 1 ) */
+ } else {
+ NTSC_PAL_HorizontalPulseWidth = 0;
+ /* 4 bit: hsync pulse width = ( ( CR74[4:0] - CR74[5] )
+ * / 2 ) + 1 --> CR74[4:0] = 2*(hs-1) + CR74[5] */
+ HorizontalEqualizationPulses = 1; /* inverse value */
+ HorizontalSerration1Start = 0; /* ( ht >> 1 ) */
+ HorizontalSerration2Start = 0; /* ( ht >> 1 ) */
+ }
+
+ 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;
+ ve >>= 1;
+ vt >>= 1;
+ }
+ memset (cr, 0, sizeof (cr));
+ cr[0x00] = 0xff & (ht - 5);
+ cr[0x01] = hd - 1; /* soll:4f ist 59 */
+ cr[0x02] = hd;
+ cr[0x03] = (hbe & 0x1F) | 0x80; /* hd + ht - hd */
+ cr[0x04] = hs;
+ cr[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f);
+ cr[0x06] = (vt - 2) & 0xFF;
+ cr[0x30] = (vt - 2) >> 8;
+ cr[0x07] = ((vt & 0x100) >> 8)
+ | ((vd & 0x100) >> 7)
+ | ((vs & 0x100) >> 6)
+ | ((vs & 0x100) >> 5)
+ | ((LineCompare & 0x100) >> 4)
+ | ((vt & 0x200) >> 4)
+ | ((vd & 0x200) >> 3)
+ | ((vs & 0x200) >> 2);
+ cr[0x08] = 0x00;
+ cr[0x09] = (dblscan << 7)
+ | ((LineCompare & 0x200) >> 3)
+ | ((vs & 0x200) >> 4)
+ | (TextScanLines - 1);
+ cr[0x10] = vs & 0xff; /* VSyncPulseStart */
+ cr[0x32] = (vs & 0xf00) >> 8; /* VSyncPulseStart */
+ cr[0x11] = (ve & 0x0f); /* | 0x20; */
+ cr[0x12] = (vd - 1) & 0xff; /* LineCount */
+ cr[0x31] = ((vd - 1) & 0xf00) >> 8; /* LineCount */
+ cr[0x13] = wd & 0xff;
+ cr[0x41] = (wd & 0xf00) >> 8;
+ cr[0x15] = vs & 0xff;
+ cr[0x33] = (vs & 0xf00) >> 8;
+ cr[0x38] = (0x100 & (ht - 5)) >> 8;
+ cr[0x3C] = 0xc0 & hbe;
+ cr[0x16] = (vt - 1) & 0xff; /* vbe - docu wants vt here, */
+ cr[0x17] = 0xe3; /* but it does not work */
+ cr[0x18] = 0xff & LineCompare;
+ cr[0x22] = 0xff; /* todo? */
+ cr[0x70] = interlaced ? (0x80 | CrtHalfLine) : 0x00; /* check:0xa6 */
+ cr[0x71] = 0x80 | (RAMDAC_BlankPedestalEnable << 6)
+ | (BlDelayCtrl << 5)
+ | ((0x03 & CompSyncCharClkDelay) << 3)
+ | (0x07 & CompSyncPixelClkDelay); /* todo: see XR82 */
+ cr[0x72] = HorizontalSerration1Start;
+ cr[0x73] = HorizontalSerration2Start;
+ cr[0x74] = (HorizontalEqualizationPulses << 5)
+ | NTSC_PAL_HorizontalPulseWidth;
+ /* todo: ct69000 has also 0x75-79 */
+ /* now set the registers */
+ for (i = 0; i <= 0x0d; i++) { /*CR00 .. CR0D */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ }
+ for (i = 0x10; i <= 0x18; i++) { /*CR10 .. CR18 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ }
+ i = 0x22; /*CR22 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ for (i = 0x30; i <= 0x33; i++) { /*CR30 .. CR33 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ }
+ i = 0x38; /*CR38 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ i = 0x3C; /*CR3C */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ for (i = 0x40; i <= 0x41; i++) { /*CR40 .. CR41 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ }
+ for (i = 0x70; i <= 0x74; i++) { /*CR70 .. CR74 */
+ ctWrite_i (CT_CR_O, i, cr[i]);
+ }
+ tmp = ctRead_i (CT_CR_O, 0x40);
+ tmp &= 0x0f;
+ tmp |= 0x80;
+ ctWrite_i (CT_CR_O, 0x40, tmp); /* StartAddressEnable */
+}
+
+/* pixelclock control */
+
+/*****************************************************************************
+ We have a rational number p/q and need an m/n which is very close to p/q
+ but has m and n within mnmin and mnmax. We have no floating point in the
+ kernel. We can use long long without divide. And we have time to compute...
+******************************************************************************/
+static unsigned int
+FindBestPQFittingMN (unsigned int p, unsigned int q, unsigned int mnmin,
+ unsigned int mnmax, unsigned int *pm, unsigned int *pn)
+{
+ /* this code is not for general purpose usable but good for our number ranges */
+ unsigned int n = mnmin, m = 0;
+ long long int L = 0, P = p, Q = q, H = P >> 1;
+ long long int D = 0x7ffffffffffffffLL;
+ for (n = mnmin; n <= mnmax; n++) {
+ m = mnmin; /* p/q ~ m/n -> p*n ~ m*q -> p*n-x*q ~ 0 */
+ L = P * n - m * Q; /* n * vco - m * fref should be near 0 */
+ while (L > 0 && m < mnmax) {
+ L -= q; /* difference is greater as 0 subtract fref */
+ m++; /* and increment m */
+ }
+ /* difference is less or equal than 0 or m > maximum */
+ if (m > mnmax)
+ break; /* no solution: if we increase n we get the same situation */
+ /* L is <= 0 now */
+ if (-L > H && m > mnmin) { /* if difference > the half fref */
+ L += q; /* 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;
+ *pm = m;
+ *pn = n; /* keep improved data */
+ if (D == 0)
+ break; /* best result we can get */
+ }
+ return (unsigned int) (0xffffffff & D);
+}
+
+/* that is the hardware < 69000 we have to manage
+ +---------+ +-------------------+ +----------------------+ +--+
+ | REFCLK |__|NTSC Divisor Select|__|FVCO Reference Divisor|__|÷N|__
+ | 14.3MHz | |(NTSCDS) (÷1, ÷5) | |Select (RDS) (÷1, ÷4) | | | |
+ +---------+ +-------------------+ +----------------------+ +--+ |
+ ___________________________________________________________________|
+ |
+ | fvco fout
+ | +--------+ +------------+ +-----+ +-------------------+ +----+
+ +-| Phase |__|Charge Pump |__| VCO |_____|Post Divisor (PD) |___|CLK |--->
+ +-| Detect | |& Filter VCO| | | | |÷1, 2, 4, 8, 16, 32| | |
+ | +--------+ +------------+ +-----+ | +-------------------+ +----+
+ | |
+ | +--+ +---------------+ |
+ |____|÷M|___|VCO Loop Divide|__________|
+ | | |(VLD)(÷4, ÷16) |
+ +--+ +---------------+
+****************************************************************************
+ that is the hardware >= 69000 we have to manage
+ +---------+ +--+
+ | REFCLK |__|÷N|__
+ | 14.3MHz | | | |
+ +---------+ +--+ |
+ __________________|
+ |
+ | fvco fout
+ | +--------+ +------------+ +-----+ +-------------------+ +----+
+ +-| Phase |__|Charge Pump |__| VCO |_____|Post Divisor (PD) |___|CLK |--->
+ +-| Detect | |& Filter VCO| | | | |÷1, 2, 4, 8, 16, 32| | |
+ | +--------+ +------------+ +-----+ | +-------------------+ +----+
+ | |
+ | +--+ +---------------+ |
+ |____|÷M|___|VCO Loop Divide|__________|
+ | | |(VLD)(÷1, ÷4) |
+ +--+ +---------------+
+
+
+*/
+
+#define VIDEO_FREF 14318180; /* Hz */
+/*****************************************************************************/
+static int
+ReadPixClckFromXrRegsBack (struct ctfb_chips_properties *param)
+{
+ unsigned int m, n, vld, pd, PD, fref, xr_cb, i, pixclock;
+ i = 0;
+ pixclock = -1;
+ fref = VIDEO_FREF;
+ m = ctRead_i (CT_XR_O, 0xc8);
+ n = ctRead_i (CT_XR_O, 0xc9);
+ m -= param->mn_diff;
+ n -= param->mn_diff;
+ xr_cb = ctRead_i (CT_XR_O, 0xcb);
+ PD = (0x70 & xr_cb) >> 4;
+ pd = 1;
+ for (i = 0; i < PD; i++) {
+ pd *= 2;
+ }
+ vld = (0x04 & xr_cb) ? param->vld_set : param->vld_not_set;
+ if (n * vld * m) {
+ unsigned long long p = 1000000000000LL * pd * n;
+ unsigned long long q = (long long) fref * vld * m;
+ while ((p > 0xffffffffLL) || (q > 0xffffffffLL)) {
+ p >>= 1; /* can't divide with long long so we scale down */
+ q >>= 1;
+ }
+ pixclock = (unsigned) p / (unsigned) q;
+ } else
+ printf ("Invalid data in xr regs.\n");
+ return pixclock;
+}
+
+/*****************************************************************************/
+static void
+FindAndSetPllParamIntoXrRegs (unsigned int pixelclock,
+ struct ctfb_chips_properties *param)
+{
+ unsigned int m, n, vld, pd, PD, fref, xr_cb;
+ unsigned int fvcomin, fvcomax, pclckmin, pclckmax, pclk;
+ unsigned int pfreq, fvco, new_pixclock;
+ unsigned int D,nback,mback;
+
+ fref = VIDEO_FREF;
+ pd = 1;
+ PD = 0;
+ fvcomin = param->vco_min;
+ fvcomax = param->vco_max; /* MHz */
+ pclckmin = 1000000 / fvcomax + 1; /* 4546 */
+ pclckmax = 32000000 / fvcomin - 1; /* 666665 */
+ pclk = minmax (pclckmin, pixelclock, pclckmax); /* ps pp */
+ pfreq = 250 * (4000000000U / pclk);
+ fvco = pfreq; /* Hz */
+ new_pixclock = 0;
+ while (fvco < fvcomin * 1000000) {
+ /* double VCO starting with the pixelclock frequency
+ * as long as it is lower than the minimal VCO frequency */
+ fvco *= 2;
+ pd *= 2;
+ PD++;
+ }
+ /* fvco is exactly pd * pixelclock and higher than the ninmal VCO frequency */
+ /* first try */
+ vld = param->vld_set;
+ D=FindBestPQFittingMN (fvco / vld, fref, param->mn_min, param->mn_max, &m, &n); /* rds = 1 */
+ mback=m;
+ nback=n;
+ /* second try */
+ vld = param->vld_not_set;
+ if(D<FindBestPQFittingMN (fvco / vld, fref, param->mn_min, param->mn_max, &m, &n)) { /* rds = 1 */
+ /* first try was better */
+ m=mback;
+ n=nback;
+ vld = param->vld_set;
+ }
+ m += param->mn_diff;
+ n += param->mn_diff;
+ debug("VCO %d, pd %d, m %d n %d vld %d\n", fvco, pd, m, n, vld);
+ xr_cb = ((0x7 & PD) << 4) | (vld == param->vld_set ? 0x04 : 0);
+ /* All four of the registers used for dot clock 2 (XRC8 - XRCB) must be
+ * written, and in order from XRC8 to XRCB, before the hardware will
+ * update the synthesizer s settings.
+ */
+ ctWrite_i (CT_XR_O, 0xc8, m);
+ ctWrite_i (CT_XR_O, 0xc9, n); /* xrca does not exist in CT69000 and CT69030 */
+ ctWrite_i (CT_XR_O, 0xca, 0); /* because of a hw bug I guess, but we write */
+ ctWrite_i (CT_XR_O, 0xcb, xr_cb); /* 0 to it for savety */
+ new_pixclock = ReadPixClckFromXrRegsBack (param);
+ debug("pixelclock.set = %d, pixelclock.real = %d\n",
+ pixelclock, new_pixclock);
+}
+
+/*****************************************************************************/
+static void
+SetMsrRegs (struct ctfb_res_modes *mode)
+{
+ unsigned char h_synch_high, v_synch_high;
+
+ 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 */
+ ctWrite (CT_MSR_W_O, (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
+ */
+}
+
+/************************************************************************************/
+#ifdef VGA_DUMP_REG
+
+static void
+ctDispRegs (unsigned short index, int from, int to)
+{
+ unsigned char status;
+ int i;
+
+ for (i = from; i < to; i++) {
+ status = ctRead_i (index, i);
+ printf ("%02X: is %02X\n", i, status);
+ }
+}
+
+void
+video_dump_reg (void)
+{
+ int i;
+
+ printf ("Extended Regs:\n");
+ ctDispRegs (CT_XR_O, 0, 0xC);
+ ctDispRegs (CT_XR_O, 0xe, 0xf);
+ ctDispRegs (CT_XR_O, 0x20, 0x21);
+ ctDispRegs (CT_XR_O, 0x40, 0x50);
+ ctDispRegs (CT_XR_O, 0x60, 0x64);
+ ctDispRegs (CT_XR_O, 0x67, 0x68);
+ ctDispRegs (CT_XR_O, 0x70, 0x72);
+ ctDispRegs (CT_XR_O, 0x80, 0x83);
+ ctDispRegs (CT_XR_O, 0xA0, 0xB0);
+ ctDispRegs (CT_XR_O, 0xC0, 0xD3);
+ printf ("Sequencer Regs:\n");
+ ctDispRegs (CT_SR_O, 0, 0x8);
+ printf ("Graphic Regs:\n");
+ ctDispRegs (CT_GR_O, 0, 0x9);
+ printf ("CRT Regs:\n");
+ ctDispRegs (CT_CR_O, 0, 0x19);
+ ctDispRegs (CT_CR_O, 0x22, 0x23);
+ ctDispRegs (CT_CR_O, 0x30, 0x34);
+ ctDispRegs (CT_CR_O, 0x38, 0x39);
+ ctDispRegs (CT_CR_O, 0x3C, 0x3D);
+ ctDispRegs (CT_CR_O, 0x40, 0x42);
+ ctDispRegs (CT_CR_O, 0x70, 0x80);
+ /* don't display the attributes */
+}
+
+#endif
+
+#ifdef CONFIG_VIDEO_HW_CURSOR
+/***************************************************************
+ * Set Hardware Cursor in Pixel
+ */
+void
+video_set_hw_cursor (int x, int y)
+{
+ int sig_x = 0, sig_y = 0;
+ if (x < 0) {
+ x *= -1;
+ sig_x = 1;
+ }
+ if (y < 0) {
+ y *= -1;
+ sig_y = 1;
+ }
+ ctWrite_i (CT_XR_O, 0xa4, x & 0xff);
+ ctWrite_i (CT_XR_O, 0xa5, (x >> 8) & 0x7);
+ ctWrite_i (CT_XR_O, 0xa6, y & 0xff);
+ ctWrite_i (CT_XR_O, 0xa7, (y >> 8) & 0x7);
+}
+
+/***************************************************************
+ * Init Hardware Cursor. To know the size of the Cursor,
+ * we have to know the Font size.
+ */
+void
+video_init_hw_cursor (int font_width, int font_height)
+{
+ unsigned char xr_80;
+ unsigned long *curs, pattern;
+ int i;
+ int cursor_start;
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+
+ cursor_start = pGD->dprBase;
+ xr_80 = ctRead_i (CT_XR_O, 0x80);
+ /* set start address */
+ ctWrite_i (CT_XR_O, 0xa2, (cursor_start >> 8) & 0xf0);
+ ctWrite_i (CT_XR_O, 0xa3, (cursor_start >> 16) & 0x3f);
+ /* set cursor shape */
+ curs = (unsigned long *) cursor_start;
+ i = 0;
+ while (i < 0x400) {
+ curs[i++] = 0xffffffff; /* AND mask */
+ curs[i++] = 0xffffffff; /* AND mask */
+ curs[i++] = 0; /* XOR mask */
+ curs[i++] = 0; /* XOR mask */
+ /* Transparent */
+ }
+ pattern = 0xffffffff >> font_width;
+ i = 0;
+ while (i < (font_height * 2)) {
+ curs[i++] = pattern; /* AND mask */
+ curs[i++] = pattern; /* AND mask */
+ curs[i++] = 0; /* XOR mask */
+ curs[i++] = 0; /* XOR mask */
+ /* Cursor Color 0 */
+ }
+ /* set blink rate */
+ ctWrite_i (CT_FP_O, 0x19, 0xf);
+
+ /* set cursors colors */
+ xr_80 = ctRead_i (CT_XR_O, 0x80);
+ xr_80 |= 0x1; /* alternate palette select */
+ ctWrite_i (CT_XR_O, 0x80, xr_80);
+ video_set_lut (4, CONSOLE_FG_COL, CONSOLE_FG_COL, CONSOLE_FG_COL);
+ /* position 4 is color 0 cursor 0 */
+ xr_80 &= 0xfe; /* normal palette select */
+ ctWrite_i (CT_XR_O, 0x80, xr_80);
+ /* cursor enable */
+ ctWrite_i (CT_XR_O, 0xa0, 0x91);
+ xr_80 |= 0x10; /* enable hwcursor */
+ ctWrite_i (CT_XR_O, 0x80, xr_80);
+ video_set_hw_cursor (0, 0);
+}
+#endif /* CONFIG_VIDEO_HW_CURSOR */
+
+/***************************************************************
+ * Wait for BitBlt ready
+ */
+static int
+video_wait_bitblt (unsigned long addr)
+{
+ unsigned long br04;
+ int i = 0;
+ br04 = in32r (addr);
+ while (br04 & 0x80000000) {
+ udelay (1);
+ br04 = in32r (addr);
+ if (i++ > 1000000) {
+ printf ("ERROR Timeout %lx\n", br04);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/***************************************************************
+ * Set up BitBlt Registrs
+ */
+static void
+SetDrawingEngine (int bits_per_pixel)
+{
+ unsigned long br04, br00;
+ unsigned char tmp;
+
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+
+ tmp = ctRead_i (CT_XR_O, 0x20); /* BitBLT Configuration */
+ tmp |= 0x02; /* reset BitBLT */
+ ctWrite_i (CT_XR_O, 0x20, tmp); /* BitBLT Configuration */
+ udelay (10);
+ tmp &= 0xfd; /* release reset BitBLT */
+ ctWrite_i (CT_XR_O, 0x20, tmp); /* BitBLT Configuration */
+ video_wait_bitblt (pGD->pciBase + BR04_o);
+
+ /* set pattern Address */
+ out32r (pGD->pciBase + BR05_o, PATTERN_ADR & 0x003ffff8);
+ br04 = 0;
+ if (bits_per_pixel == 1) {
+ br04 |= 0x00040000; /* monochome Pattern */
+ br04 |= 0x00001000; /* monochome source */
+ }
+ br00 = ((pGD->winSizeX * pGD->gdfBytesPP) << 16) + (pGD->winSizeX * pGD->gdfBytesPP); /* bytes per scanline */
+ out32r (pGD->pciBase + BR00_o, br00); /* */
+ out32r (pGD->pciBase + BR08_o, (10 << 16) + 10); /* dummy */
+ out32r (pGD->pciBase + BR04_o, br04); /* write all 0 */
+ out32r (pGD->pciBase + BR07_o, 0); /* destination */
+ video_wait_bitblt (pGD->pciBase + BR04_o);
+}
+
+/****************************************************************************
+* supported Video Chips
+*/
+static struct pci_device_id supported[] = {
+ {PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69000},
+#ifdef CONFIG_USE_CPCIDVI
+ {PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69030},
+#endif
+ {}
+};
+
+/*******************************************************************************
+*
+* Init video chip
+*/
+void *
+video_hw_init (void)
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ unsigned short device_id;
+ pci_dev_t devbusfn;
+ int videomode;
+ unsigned long t1, hsynch, vsynch;
+ unsigned int pci_mem_base, *vm;
+ int tmp, i, bits_per_pixel;
+ char *penv;
+ struct ctfb_res_modes *res_mode;
+ struct ctfb_res_modes var_mode;
+ struct ctfb_chips_properties *chips_param;
+ /* Search for video chip */
+
+ if ((devbusfn = pci_find_devices (supported, 0)) < 0) {
+#ifdef CONFIG_VIDEO_ONBOARD
+ printf ("Video: Controller not found !\n");
+#endif
+ 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);
+
+ /* get chips params */
+ for (chips_param = (struct ctfb_chips_properties *) &chips[0];
+ chips_param->device_id != 0; chips_param++) {
+ if (chips_param->device_id == device_id)
+ break;
+ }
+ if (chips_param->device_id == 0) {
+#ifdef CONFIG_VIDEO_ONBOARD
+ printf ("Video: controller 0x%X not supported\n", device_id);
+#endif
+ return NULL;
+ }
+ /* supported Video controller found */
+ printf ("Video: ");
+
+ tmp = 0;
+ videomode = 0x301;
+ /* 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 0x301 ");
+ 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 available color depth for controller memory */
+ if (bits_per_pixel == 15)
+ tmp = 2;
+ else
+ tmp = bits_per_pixel >> 3; /* /8 */
+ if (((chips_param->max_mem -
+ ACCELMEMORY) / (res_mode->xres * res_mode->yres)) < tmp) {
+ tmp =
+ ((chips_param->max_mem -
+ ACCELMEMORY) / (res_mode->xres * res_mode->yres));
+ if (tmp == 0) {
+ printf
+ ("No matching videomode found .-> reduce resolution\n");
+ return NULL;
+ } else {
+ printf ("Switching back to %d Bits per Pixel ",
+ tmp << 3);
+ bits_per_pixel = tmp << 3;
+ }
+ }
+
+ /* 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 = CONFIG_SYS_ISA_IO_BASE_ADDRESS;
+ pGD->pciBase = pci_mem_base;
+ pGD->frameAdrs = pci_mem_base;
+ pGD->memSize = chips_param->max_mem;
+ /* Cursor Start Address */
+ pGD->dprBase =
+ (pGD->winSizeX * pGD->winSizeY * pGD->gdfBytesPP) + pci_mem_base;
+ if ((pGD->dprBase & 0x0fff) != 0) {
+ /* allign it */
+ pGD->dprBase &= 0xfffff000;
+ pGD->dprBase += 0x00001000;
+ }
+ debug("Cursor Start %x Pattern Start %x\n", pGD->dprBase,
+ PATTERN_ADR);
+ pGD->vprBase = pci_mem_base; /* Dummy */
+ pGD->cprBase = pci_mem_base; /* Dummy */
+ /* set up Hardware */
+
+#ifdef CONFIG_USE_CPCIDVI
+ if (device_id == PCI_DEVICE_ID_CT_69030) {
+ ctWrite (CT_MSR_W_O, 0x0b);
+ ctWrite (0x3cd, 0x13);
+ ctWrite_i (CT_FP_O, 0x02, 0x00);
+ ctWrite_i (CT_FP_O, 0x05, 0x00);
+ ctWrite_i (CT_FP_O, 0x06, 0x00);
+ ctWrite (0x3c2, 0x0b);
+ ctWrite_i (CT_FP_O, 0x02, 0x10);
+ ctWrite_i (CT_FP_O, 0x01, 0x09);
+ } else {
+ ctWrite (CT_MSR_W_O, 0x01);
+ }
+#else
+ ctWrite (CT_MSR_W_O, 0x01);
+#endif
+
+ /* set the extended Registers */
+ ctLoadRegs (CT_XR_O, xreg);
+ /* set atribute registers */
+ SetArRegs ();
+ /* set Graphics register */
+ SetGrRegs ();
+ /* set sequencer */
+ SetSrRegs ();
+
+ /* set msr */
+ SetMsrRegs (res_mode);
+
+ /* set CRT Registers */
+ SetCrRegs (res_mode, bits_per_pixel);
+ /* set color mode */
+ SetBitsPerPixelIntoXrRegs (bits_per_pixel);
+
+ /* set PLL */
+ FindAndSetPllParamIntoXrRegs (res_mode->pixclock, chips_param);
+
+ ctWrite_i (CT_SR_O, 0, 0x03); /* clear synchronous reset */
+ /* Clear video memory */
+ i = pGD->memSize / 4;
+ vm = (unsigned int *) pGD->pciBase;
+ while (i--)
+ *vm++ = 0;
+ SetDrawingEngine (bits_per_pixel);
+#ifdef VGA_DUMP_REG
+ video_dump_reg ();
+#endif
+
+ return ((void *) &ctfb);
+}
+
+ /*******************************************************************************
+*
+* 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 */
+ )
+{
+
+ ctWrite (CT_LUT_MASK_O, 0xff);
+
+ ctWrite (CT_LUT_START_O, (char) index);
+
+ ctWrite (CT_LUT_RGB_O, r); /* red */
+ ctWrite (CT_LUT_RGB_O, g); /* green */
+ ctWrite (CT_LUT_RGB_O, b); /* blue */
+ udelay (1);
+ ctWrite (CT_LUT_MASK_O, 0xff);
+}
+
+/*******************************************************************************
+*
+* 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 */
+ )
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ unsigned long *p, br04;
+
+ video_wait_bitblt (pGD->pciBase + BR04_o);
+
+ p = (unsigned long *) PATTERN_ADR;
+ dim_x *= bpp;
+ if (bpp == 3)
+ bpp++; /* 24Bit needs a 32bit pattern */
+ memset (p, color, (bpp * sizeof (unsigned char) * 8 * 8)); /* 8 x 8 pattern data */
+ out32r (pGD->pciBase + BR07_o, ((pGD->winSizeX * dst_y) + dst_x) * pGD->gdfBytesPP); /* destination */
+ br04 = in32r (pGD->pciBase + BR04_o) & 0xffffff00;
+ br04 |= 0xF0; /* write Pattern P -> D */
+ out32r (pGD->pciBase + BR04_o, br04); /* */
+ out32r (pGD->pciBase + BR08_o, (dim_y << 16) + dim_x); /* starts the BITBlt */
+ video_wait_bitblt (pGD->pciBase + BR04_o);
+}
+
+/*******************************************************************************
+*
+* 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 */
+ )
+{
+ GraphicDevice *pGD = (GraphicDevice *) & ctfb;
+ unsigned long br04;
+
+ br04 = in32r (pGD->pciBase + BR04_o);
+
+ /* to prevent data corruption due to overlap, we have to
+ * find out if, and how the frames overlaps */
+ if (src_x < dst_x) {
+ /* src is more left than dest
+ * the frame may overlap -> start from right to left */
+ br04 |= 0x00000100; /* set bit 8 */
+ src_x += dim_x;
+ dst_x += dim_x;
+ } else {
+ br04 &= 0xfffffeff; /* clear bit 8 left to right */
+ }
+ if (src_y < dst_y) {
+ /* src is higher than dst
+ * the frame may overlap => start from bottom */
+ br04 |= 0x00000200; /* set bit 9 */
+ src_y += dim_y;
+ dst_y += dim_y;
+ } else {
+ br04 &= 0xfffffdff; /* clear bit 9 top to bottom */
+ }
+ dim_x *= bpp;
+ out32r (pGD->pciBase + BR06_o, ((pGD->winSizeX * src_y) + src_x) * pGD->gdfBytesPP); /* source */
+ out32r (pGD->pciBase + BR07_o, ((pGD->winSizeX * dst_y) + dst_x) * pGD->gdfBytesPP); /* destination */
+ br04 &= 0xffffff00;
+ br04 |= 0x000000CC; /* S -> D */
+ out32r (pGD->pciBase + BR04_o, br04); /* */
+ out32r (pGD->pciBase + BR08_o, (dim_y << 16) + dim_x); /* start the BITBlt */
+ video_wait_bitblt (pGD->pciBase + BR04_o);
+}
+#endif /* CONFIG_VIDEO */
Code Review / kvmfornfv.git / blobdiff