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HAL display implementation based on openfirmware framebuffer.

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svn path=/branches/powerpc/; revision=25376
This commit is contained in:
Art Yerkes
2007-01-08 09:30:17 +00:00
parent fbaf823a61
commit e9873af4fc
2 changed files with 58 additions and 473 deletions
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reactos/hal/halppc/generic/display.c
+54 -473
View File
@@ -122,59 +122,16 @@
*/
#include <hal.h>
#include <ppcboot.h>
#define NDEBUG
#include <debug.h>
#include "font.h"
boot_infos_t PpcEarlybootInfo;
BOOLEAN PPCGetEEBit();
#define SCREEN_SYNCHRONIZATION
#define VGA_GRAPH_MEM 0xa0000
#define VGA_CHAR_MEM 0xb8000
#define VGA_END_MEM 0xbffff
#define VGA_AC_INDEX 0x3c0
#define VGA_AC_READ 0x3c1
#define VGA_AC_WRITE 0x3c0
#define VGA_MISC_WRITE 0x3c2
#define VGA_SEQ_INDEX 0x3c4
#define VGA_SEQ_DATA 0x3c5
#define VGA_DAC_MASK 0x3c6
#define VGA_DAC_READ_INDEX 0x3c7
#define VGA_DAC_WRITE_INDEX 0x3c8
#define VGA_DAC_DATA 0x3c9
#define VGA_FEATURE_READ 0x3ca
#define VGA_MISC_READ 0x3cc
#define VGA_GC_INDEX 0x3ce
#define VGA_GC_DATA 0x3cf
#define VGA_CRTC_INDEX 0x3d4
#define VGA_CRTC_DATA 0x3d5
#define VGA_INSTAT_READ 0x3da
#define VGA_SEQ_NUM_REGISTERS 5
#define VGA_CRTC_NUM_REGISTERS 25
#define VGA_GC_NUM_REGISTERS 9
#define VGA_AC_NUM_REGISTERS 21
#define CRTC_COLUMNS 0x01
#define CRTC_OVERFLOW 0x07
#define CRTC_ROWS 0x12
#define CRTC_SCANLINES 0x09
#define CRTC_CURHI 0x0e
#define CRTC_CURLO 0x0f
#define CHAR_ATTRIBUTE_BLACK 0x00 /* black on black */
#define CHAR_ATTRIBUTE 0x17 /* grey on blue */
#define FONT_AMOUNT (8*8192)
/* VARIABLES ****************************************************************/
static ULONG CursorX = 0; /* Cursor Position */
@@ -184,34 +141,27 @@ static ULONG SizeY = 25;
static BOOLEAN DisplayInitialized = FALSE;
static BOOLEAN HalOwnsDisplay = TRUE;
static PUSHORT VideoBuffer = NULL;
static PUCHAR GraphVideoBuffer = NULL;
static ULONG GraphVideoBuffer = 0;
static PHAL_RESET_DISPLAY_PARAMETERS HalResetDisplayParameters = NULL;
static UCHAR SavedTextPalette[768];
static UCHAR SavedTextMiscOutReg;
static UCHAR SavedTextCrtcReg[VGA_CRTC_NUM_REGISTERS];
static UCHAR SavedTextAcReg[VGA_AC_NUM_REGISTERS];
static UCHAR SavedTextGcReg[VGA_GC_NUM_REGISTERS];
static UCHAR SavedTextSeqReg[VGA_SEQ_NUM_REGISTERS];
static UCHAR SavedTextFont[2][FONT_AMOUNT];
static BOOLEAN TextPaletteEnabled = FALSE;
extern UCHAR XboxFont8x16[];
extern void SetPhys( ULONG Addr, ULONG Data );
extern void SetPhysByte( ULONG Addr, ULONG Data );
/* PRIVATE FUNCTIONS *********************************************************/
VOID FASTCALL
HalClearDisplay (UCHAR CharAttribute)
{
WORD *ptr = (WORD*)VideoBuffer;
ULONG i;
ULONG deviceSize =
PpcEarlybootInfo.dispDeviceRowBytes * PpcEarlybootInfo.dispDeviceDepth *
PpcEarlybootInfo.dispDeviceRect[3];
for(i = 0; i < deviceSize; i += sizeof(int) )
SetPhys(GraphVideoBuffer + i, CharAttribute);
for (i = 0; i < SizeX * SizeY; i++, ptr++)
*ptr = ((CharAttribute << 8) + ' ');
CursorX = 0;
CursorY = 0;
CursorX = 0;
CursorY = 0;
}
@@ -220,352 +170,38 @@ HalClearDisplay (UCHAR CharAttribute)
VOID STATIC
HalScrollDisplay (VOID)
{
PUSHORT ptr;
int i;
ptr = VideoBuffer + SizeX;
RtlMoveMemory(VideoBuffer,
ptr,
SizeX * (SizeY - 1) * 2);
ptr = VideoBuffer + (SizeX * (SizeY - 1));
for (i = 0; i < (int)SizeX; i++, ptr++)
PULONG Dest = (PULONG)GraphVideoBuffer,
Src = (PULONG)(GraphVideoBuffer + (16 * PpcEarlybootInfo.dispDeviceRowBytes));
PULONG End = (PULONG)
GraphVideoBuffer +
(PpcEarlybootInfo.dispDeviceRowBytes * PpcEarlybootInfo.dispDeviceDepth *
PpcEarlybootInfo.dispDeviceRect[3]);
for( ; Src < End; Src += sizeof(int) )
{
*ptr = (CHAR_ATTRIBUTE << 8) + ' ';
*Dest++ = *Src++;
}
}
VOID STATIC FASTCALL
HalPutCharacter (CHAR Character)
{
PUSHORT ptr;
int i,j,k;
PCHAR Dest = (PCHAR)
(GraphVideoBuffer +
(16 * PpcEarlybootInfo.dispDeviceRowBytes * CursorY) +
((PpcEarlybootInfo.dispDeviceDepth / 8) * CursorX));
ptr = VideoBuffer + ((CursorY * SizeX) + CursorX);
*ptr = (CHAR_ATTRIBUTE << 8) + Character;
}
VOID STATIC
HalDisablePalette(VOID)
{
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
WRITE_PORT_UCHAR((PUCHAR)VGA_AC_INDEX, 0x20);
TextPaletteEnabled = FALSE;
}
VOID STATIC
HalEnablePalette(VOID)
{
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
WRITE_PORT_UCHAR((PUCHAR)VGA_AC_INDEX, 0x00);
TextPaletteEnabled = TRUE;
}
UCHAR STATIC FASTCALL
HalReadGc(ULONG Index)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_GC_INDEX, (UCHAR)Index);
return(READ_PORT_UCHAR((PUCHAR)VGA_GC_DATA));
}
VOID STATIC FASTCALL
HalWriteGc(ULONG Index, UCHAR Value)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_GC_INDEX, (UCHAR)Index);
WRITE_PORT_UCHAR((PUCHAR)VGA_GC_DATA, Value);
}
UCHAR STATIC FASTCALL
HalReadSeq(ULONG Index)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_SEQ_INDEX, (UCHAR)Index);
return(READ_PORT_UCHAR((PUCHAR)VGA_SEQ_DATA));
}
VOID STATIC FASTCALL
HalWriteSeq(ULONG Index, UCHAR Value)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_SEQ_INDEX, (UCHAR)Index);
WRITE_PORT_UCHAR((PUCHAR)VGA_SEQ_DATA, Value);
}
VOID STATIC FASTCALL
HalWriteAc(ULONG Index, UCHAR Value)
{
if (TextPaletteEnabled)
{
Index &= ~0x20;
for( i = 0; i < 16; i++ ) {
for( j = 0; j < 8; j++ ) {
for( k = 0; k < PpcEarlybootInfo.dispDeviceDepth / 8; k++ ) {
SetPhysByte
((ULONG)(Dest + (j * PpcEarlybootInfo.dispDeviceDepth) + k),
((1 << j) & (XboxFont8x16[(16 * Character) + i]) ? 0xff : 1));
}
}
Dest += PpcEarlybootInfo.dispDeviceRowBytes;
}
else
{
Index |= 0x20;
}
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
WRITE_PORT_UCHAR((PUCHAR)VGA_AC_INDEX, (UCHAR)Index);
WRITE_PORT_UCHAR((PUCHAR)VGA_AC_WRITE, Value);
}
UCHAR STATIC FASTCALL
HalReadAc(ULONG Index)
{
if (TextPaletteEnabled)
{
Index &= ~0x20;
}
else
{
Index |= 0x20;
}
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
WRITE_PORT_UCHAR((PUCHAR)VGA_AC_INDEX, (UCHAR)Index);
return(READ_PORT_UCHAR((PUCHAR)VGA_AC_READ));
}
VOID STATIC FASTCALL
HalWriteCrtc(ULONG Index, UCHAR Value)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, (UCHAR)Index);
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA, Value);
}
UCHAR STATIC FASTCALL
HalReadCrtc(ULONG Index)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, (UCHAR)Index);
return(READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA));
}
VOID STATIC FASTCALL
HalResetSeq(BOOLEAN Start)
{
if (Start)
{
HalWriteSeq(0x00, 0x01);
}
else
{
HalWriteSeq(0x00, 0x03);
}
}
VOID STATIC FASTCALL
HalBlankScreen(BOOLEAN On)
{
UCHAR Scrn;
Scrn = HalReadSeq(0x01);
if (On)
{
Scrn &= ~0x20;
}
else
{
Scrn |= 0x20;
}
HalResetSeq(TRUE);
HalWriteSeq(0x01, Scrn);
HalResetSeq(FALSE);
}
VOID STATIC
HalSaveFont(VOID)
{
UCHAR Attr10;
UCHAR MiscOut, Gc4, Gc5, Gc6, Seq2, Seq4;
ULONG i;
/* Check if we are already in graphics mode. */
Attr10 = HalReadAc(0x10);
if (Attr10 & 0x01)
{
return;
}
/* Save registers. */
MiscOut = READ_PORT_UCHAR((PUCHAR)VGA_MISC_READ);
Gc4 = HalReadGc(0x04);
Gc5 = HalReadGc(0x05);
Gc6 = HalReadGc(0x06);
Seq2 = HalReadSeq(0x02);
Seq4 = HalReadSeq(0x04);
/* Force colour mode. */
WRITE_PORT_UCHAR((PUCHAR)VGA_MISC_WRITE, (UCHAR)(MiscOut | 0x01));
HalBlankScreen(FALSE);
for (i = 0; i < 2; i++)
{
/* Save font 1 */
HalWriteSeq(0x02, (UCHAR)(0x04 << i)); /* Write to plane 2 or 3 */
HalWriteSeq(0x04, 0x06); /* Enable plane graphics. */
HalWriteGc(0x04, (UCHAR)(0x02 + i)); /* Read plane 2 or 3 */
HalWriteGc(0x05, 0x00); /* Write mode 0; read mode 0 */
HalWriteGc(0x06, 0x05); /* Set graphics. */
memcpy(SavedTextFont[i], GraphVideoBuffer, FONT_AMOUNT);
}
/* Restore registers. */
HalWriteAc(0x10, Attr10);
HalWriteSeq(0x02, Seq2);
HalWriteSeq(0x04, Seq4);
HalWriteGc(0x04, Gc4);
HalWriteGc(0x05, Gc5);
HalWriteGc(0x06, Gc6);
WRITE_PORT_UCHAR((PUCHAR)VGA_MISC_WRITE, MiscOut);
HalBlankScreen(TRUE);
}
VOID STATIC
HalSaveMode(VOID)
{
ULONG i;
SavedTextMiscOutReg = READ_PORT_UCHAR((PUCHAR)VGA_MISC_READ);
for (i = 0; i < VGA_CRTC_NUM_REGISTERS; i++)
{
SavedTextCrtcReg[i] = HalReadCrtc(i);
}
HalEnablePalette();
for (i = 0; i < VGA_AC_NUM_REGISTERS; i++)
{
SavedTextAcReg[i] = HalReadAc(i);
}
HalDisablePalette();
for (i = 0; i < VGA_GC_NUM_REGISTERS; i++)
{
SavedTextGcReg[i] = HalReadGc(i);
}
for (i = 0; i < VGA_SEQ_NUM_REGISTERS; i++)
{
SavedTextSeqReg[i] = HalReadSeq(i);
}
}
VOID STATIC
HalDacDelay(VOID)
{
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
(VOID)READ_PORT_UCHAR((PUCHAR)VGA_INSTAT_READ);
}
VOID STATIC
HalSavePalette(VOID)
{
ULONG i;
WRITE_PORT_UCHAR((PUCHAR)VGA_DAC_MASK, 0xFF);
WRITE_PORT_UCHAR((PUCHAR)VGA_DAC_READ_INDEX, 0x00);
for (i = 0; i < 768; i++)
{
SavedTextPalette[i] = READ_PORT_UCHAR((PUCHAR)VGA_DAC_DATA);
HalDacDelay();
}
}
VOID STATIC
HalRestoreFont(VOID)
{
UCHAR MiscOut, Attr10, Gc1, Gc3, Gc4, Gc5, Gc6, Gc8;
UCHAR Seq2, Seq4;
ULONG i;
/* Save registers. */
MiscOut = READ_PORT_UCHAR((PUCHAR)VGA_MISC_READ);
Attr10 = HalReadAc(0x10);
Gc1 = HalReadGc(0x01);
Gc3 = HalReadGc(0x03);
Gc4 = HalReadGc(0x04);
Gc5 = HalReadGc(0x05);
Gc6 = HalReadGc(0x06);
Gc8 = HalReadGc(0x08);
Seq2 = HalReadSeq(0x02);
Seq4 = HalReadSeq(0x04);
/* Force into colour mode. */
WRITE_PORT_UCHAR((PUCHAR)VGA_MISC_WRITE, (UCHAR)(MiscOut | 0x10));
HalBlankScreen(FALSE);
HalWriteGc(0x03, 0x00); /* Don't rotate; write unmodified. */
HalWriteGc(0x08, 0xFF); /* Write all bits. */
HalWriteGc(0x01, 0x00); /* All planes from CPU. */
for (i = 0; i < 2; i++)
{
HalWriteSeq(0x02, (UCHAR)(0x04 << i)); /* Write to plane 2 or 3 */
HalWriteSeq(0x04, 0x06); /* Enable plane graphics. */
HalWriteGc(0x04, (UCHAR)(0x02 + i)); /* Read plane 2 or 3 */
HalWriteGc(0x05, 0x00); /* Write mode 0; read mode 0. */
HalWriteGc(0x06, 0x05); /* Set graphics. */
memcpy(GraphVideoBuffer, SavedTextFont[i], FONT_AMOUNT);
}
HalBlankScreen(TRUE);
/* Restore registers. */
WRITE_PORT_UCHAR((PUCHAR)VGA_MISC_WRITE, MiscOut);
HalWriteAc(0x10, Attr10);
HalWriteGc(0x01, Gc1);
HalWriteGc(0x03, Gc3);
HalWriteGc(0x04, Gc4);
HalWriteGc(0x05, Gc5);
HalWriteGc(0x06, Gc6);
HalWriteGc(0x08, Gc8);
HalWriteSeq(0x02, Seq2);
HalWriteSeq(0x04, Seq4);
}
VOID STATIC
HalRestoreMode(VOID)
{
ULONG i;
WRITE_PORT_UCHAR((PUCHAR)VGA_MISC_WRITE, SavedTextMiscOutReg);
for (i = 1; i < VGA_SEQ_NUM_REGISTERS; i++)
{
HalWriteSeq(i, SavedTextSeqReg[i]);
}
/* Unlock CRTC registers 0-7 */
HalWriteCrtc(17, (UCHAR)(SavedTextCrtcReg[17] & ~0x80));
for (i = 0; i < VGA_CRTC_NUM_REGISTERS; i++)
{
HalWriteCrtc(i, SavedTextCrtcReg[i]);
}
for (i = 0; i < VGA_GC_NUM_REGISTERS; i++)
{
HalWriteGc(i, SavedTextGcReg[i]);
}
HalEnablePalette();
for (i = 0; i < VGA_AC_NUM_REGISTERS; i++)
{
HalWriteAc(i, SavedTextAcReg[i]);
}
HalDisablePalette();
}
VOID STATIC
HalRestorePalette(VOID)
{
ULONG i;
WRITE_PORT_UCHAR((PUCHAR)VGA_DAC_MASK, 0xFF);
WRITE_PORT_UCHAR((PUCHAR)VGA_DAC_WRITE_INDEX, 0x00);
for (i = 0; i < 768; i++)
{
WRITE_PORT_UCHAR((PUCHAR)VGA_DAC_DATA, SavedTextPalette[i]);
HalDacDelay();
}
HalDisablePalette();
}
/* PRIVATE FUNCTIONS ********************************************************/
@@ -578,55 +214,27 @@ HalInitializeDisplay (PROS_LOADER_PARAMETER_BLOCK LoaderBlock)
* InitParameters = Parameters setup by the boot loader
*/
{
PHYSICAL_ADDRESS PhysBuffer;
__asm__("mr 20, %0\n\t"
"mr 21, %0\n\t"
"nop" :
:
"r" (DisplayInitialized),
"r" (&GraphVideoBuffer) :
"r20", "r21");
if (! DisplayInitialized)
{
ULONG ScanLines;
ULONG Data;
PhysBuffer.u.HighPart = 0;
PhysBuffer.u.LowPart = VGA_GRAPH_MEM;
GraphVideoBuffer = MmMapIoSpace(PhysBuffer, VGA_END_MEM - VGA_GRAPH_MEM + 1, MmNonCached);
if (NULL == GraphVideoBuffer)
{
return;
}
VideoBuffer = (PUSHORT) (GraphVideoBuffer + (VGA_CHAR_MEM - VGA_GRAPH_MEM));
boot_infos_t *XBootInfo = (boot_infos_t *)LoaderBlock->ArchExtra;
GraphVideoBuffer = (ULONG)XBootInfo->dispDeviceBase;
memcpy(&PpcEarlybootInfo, XBootInfo, sizeof(*XBootInfo));
/* Set cursor position */
// CursorX = LoaderBlock->cursorx;
// CursorY = LoaderBlock->cursory;
CursorX = 0;
CursorY = 0;
/* read screen size from the crtc */
/* FIXME: screen size should be read from the boot parameters */
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_COLUMNS);
SizeX = READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA) + 1;
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_ROWS);
SizeY = READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA);
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_OVERFLOW);
Data = READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA);
SizeY |= (((Data & 0x02) << 7) | ((Data & 0x40) << 3));
SizeY++;
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_SCANLINES);
ScanLines = (READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA) & 0x1F) + 1;
SizeY = SizeY / ScanLines;
#ifdef BOCHS_30ROWS
SizeY=30;
#endif
HalClearDisplay(CHAR_ATTRIBUTE_BLACK);
HalClearDisplay(1);
DisplayInitialized = TRUE;
/*
Save the VGA state at this point so we can restore it on a bugcheck.
*/
HalSavePalette();
HalSaveMode();
HalSaveFont();
}
}
@@ -645,14 +253,8 @@ HalReleaseDisplayOwnership(VOID)
if (HalOwnsDisplay == TRUE)
return;
if (!HalResetDisplayParameters(SizeX, SizeY))
{
HalRestoreMode();
HalRestoreFont();
HalRestorePalette();
}
HalOwnsDisplay = TRUE;
HalClearDisplay(CHAR_ATTRIBUTE);
HalClearDisplay(0);
}
@@ -681,12 +283,9 @@ HalDisplayString(IN PCH String)
*/
{
PCH pch;
#ifdef SCREEN_SYNCHRONIZATION
int offset;
#endif
static KSPIN_LOCK Lock;
KIRQL OldIrql;
ULONG Flags;
BOOLEAN InterruptsEnabled = PPCGetEEBit();
/* See comment at top of file */
if (! HalOwnsDisplay || ! DisplayInitialized)
@@ -699,18 +298,7 @@ HalDisplayString(IN PCH String)
OldIrql = KfRaiseIrql(HIGH_LEVEL);
KiAcquireSpinLock(&Lock);
Ki386SaveFlags(Flags);
Ki386DisableInterrupts();
#ifdef SCREEN_SYNCHRONIZATION
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_CURHI);
offset = READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA)<<8;
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_CURLO);
offset += READ_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA);
CursorY = offset / SizeX;
CursorX = offset % SizeX;
#endif
_disable();
while (*pch != 0)
{
@@ -747,15 +335,8 @@ HalDisplayString(IN PCH String)
pch++;
}
#ifdef SCREEN_SYNCHRONIZATION
offset = (CursorY * SizeX) + CursorX;
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_CURLO);
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA, (UCHAR)(offset & 0xff));
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_INDEX, CRTC_CURHI);
WRITE_PORT_UCHAR((PUCHAR)VGA_CRTC_DATA, (UCHAR)((offset >> 8) & 0xff));
#endif
Ki386RestoreFlags(Flags);
if(InterruptsEnabled)
_enable();
KiReleaseSpinLock(&Lock);
KfLowerIrql(OldIrql);
reactos/hal/halppc/generic/generic.rbuild
+4
View File
@@ -6,17 +6,21 @@
<define name="_NTHAL_" />
<file>beep.c</file>
<file>bus.c</file>
<file>display.c</file>
<file>dma.c</file>
<file>drive.c</file>
<file>enum.c</file>
<file>fmutex.c</file>
<file>font.c</file>
<file>halinit.c</file>
<file>irql.c</file>
<file>isa.c</file>
<file>kdbg.c</file>
<file>mca.c</file>
<file>misc.c</file>
<file>pci.c</file>
<file>portio.c</file>
<file>processor.c</file>
<file>reboot.c</file>
<file>sysbus.c</file>
<file>sysinfo.c</file>