Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-07-06 04:35:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

cleanup

Browse source 
svn path=/trunk/; revision=402
This commit is contained in:
Eric Kohl 1999-04-19 18:44:36 +00:00
parent 81b9b25bc7
commit 94f82b0796
1 changed files with 52 additions and 62 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

114
reactos/drivers/dd/blue/blue.c
View file

@ -16,10 +16,14 @@
#define NR_ROWS 50
#define NR_COLUMNS 80
#define NR_SCANLINES 8
#define CRTC_COMMAND 0x3d4
#define CRTC_DATA 0x3d5
#define CRTC_COLUMNS 0x01
#define CRTC_ROWS 0x12
#define CRTC_SCANLINES 0x09
#define CRTC_CURSORSTART 0x0a
#define CRTC_CURSOREND 0x0b
#define CRTC_CURSORPOSLO 0x0f
@ -43,15 +47,14 @@
typedef struct _DEVICE_EXTENSION
{
PBYTE VideoMemory;
SHORT CursorX;
SHORT CursorY;
PBYTE VideoMemory; /* Pointer to video memory */
DWORD CursorSize;
BOOL CursorVisible;
WORD CharAttribute;
DWORD Mode;
BYTE ScanLines; /* Height of a text line */
BYTE Rows; /* Number of rows */
BYTE Columns; /* Number of columns */
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;
@ -63,7 +66,6 @@ typedef struct _DEVICE_EXTENSION
NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
// PIO_STACK_LOCATION stk = IoGetCurrentIrpStackLocation (Irp);
PDEVICE_EXTENSION DeviceExtension;
NTSTATUS Status;
unsigned int offset;
@ -72,6 +74,7 @@ NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DeviceExtension = DeviceObject->DeviceExtension;
/* initialize device extension */
/* get pointer to video memory */
/* FIXME : use MmMapIoSpace() */
DeviceExtension->VideoMemory = (PBYTE)(IDMAP_BASE + VIDMEM_BASE);
@ -96,23 +99,18 @@ NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
__asm__("sti\n\t");
DeviceExtension->CursorX = (SHORT)(offset % NR_COLUMNS);
DeviceExtension->CursorY = (SHORT)(offset / NR_COLUMNS);
DeviceExtension->ScanLines = NR_SCANLINES; /* FIXME: read it from CRTC */
DeviceExtension->Rows = NR_ROWS; /* FIXME: read it from CRTC */
DeviceExtension->Columns = NR_COLUMNS; /* FIXME: read it from CRTC */
DeviceExtension->CursorSize = 5; /* FIXME: value correct?? */
DeviceExtension->CursorVisible = TRUE;
DeviceExtension->ScanLines = 8; /* FIXME: read it from CRTC */
/* more initialization */
DeviceExtension->CharAttribute = 0x17; /* light grey on blue */
DeviceExtension->Mode = ENABLE_PROCESSED_OUTPUT |
ENABLE_WRAP_AT_EOL_OUTPUT;
/* FIXME: more initialization?? */
/* show blinking cursor */
/* FIXME: calculate cursor size */
__asm__("cli\n\t");
@ -140,18 +138,20 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
char *vidmem;
int i, j, offset;
int cursorx, cursory;
int rows, columns;
DeviceExtension = DeviceObject->DeviceExtension;
vidmem = DeviceExtension->VideoMemory;
// cursorx = DeviceExtension->CursorX;
// cursory = DeviceExtension->CursorY;
outb_p(CRTC_COMMAND, CRTC_CURSORPOSHI);
offset = inb_p(CRTC_DATA)<<8;
outb_p(CRTC_COMMAND, CRTC_CURSORPOSLO);
offset += inb_p(CRTC_DATA);
rows = DeviceExtension->Rows;
columns = DeviceExtension->Columns;
cursory = offset / NR_COLUMNS;
cursorx = offset % NR_COLUMNS;
outb_p(CRTC_COMMAND, CRTC_CURSORPOSHI);
offset = inb_p(CRTC_DATA)<<8;
outb_p(CRTC_COMMAND, CRTC_CURSORPOSLO);
offset += inb_p(CRTC_DATA);
cursory = offset / columns;
cursorx = offset % columns;
for (i = 0; i < stk->Parameters.Write.Length; i++, pch++)
{
@ -164,7 +164,7 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
}
else if (cursory > 0)
{
cursorx = NR_COLUMNS - 1;
cursorx = columns - 1;
cursory--;
}
break;
@ -181,10 +181,10 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
offset = TAB_WIDTH - (cursorx % TAB_WIDTH);
for (j = 0; j < offset; j++)
{
vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2)] = ' ';
vidmem[(cursorx * 2) + (cursory * columns * 2)] = ' ';
cursorx++;
if (cursorx >= NR_COLUMNS)
if (cursorx >= columns)
{
cursory++;
cursorx = 0;
@ -193,10 +193,10 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
break;
default:
vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2)] = *pch;
vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2) + 1] = (char) DeviceExtension->CharAttribute;
vidmem[(cursorx * 2) + (cursory * columns * 2)] = *pch;
vidmem[(cursorx * 2) + (cursory * columns * 2) + 1] = (char) DeviceExtension->CharAttribute;
cursorx++;
if (cursorx >= NR_COLUMNS)
if (cursorx >= columns)
{
cursory++;
cursorx = 0;
@ -205,27 +205,27 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
}
if (cursory >= NR_ROWS)
if (cursory >= rows)
{
unsigned short *LinePtr;
memcpy (vidmem,
&vidmem[NR_COLUMNS * 2],
NR_COLUMNS * (NR_ROWS - 1) * 2);
&vidmem[columns * 2],
columns * (rows - 1) * 2);
LinePtr = (unsigned short *) &vidmem[NR_COLUMNS * (NR_ROWS - 1) * 2];
LinePtr = (unsigned short *) &vidmem[columns * (rows - 1) * 2];
for (j = 0; j < NR_COLUMNS; j++)
for (j = 0; j < columns; j++)
{
LinePtr[j] = DeviceExtension->CharAttribute << 8;
}
cursory = NR_ROWS - 1;
cursory = rows - 1;
}
}
/* Set the cursor position */
offset = (cursory * NR_COLUMNS) + cursorx;
offset = (cursory * columns) + cursorx;
outb_p (CRTC_COMMAND, CRTC_CURSORPOSLO);
outb_p (CRTC_DATA, offset);
@ -233,8 +233,6 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
offset >>= 8;
outb_p (CRTC_DATA, offset);
DeviceExtension->CursorX = cursorx;
DeviceExtension->CursorY = cursory;
Status = STATUS_SUCCESS;
@ -260,6 +258,8 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
case IOCTL_CONSOLE_GET_SCREEN_BUFFER_INFO:
{
PCONSOLE_SCREEN_BUFFER_INFO pcsbi = (PCONSOLE_SCREEN_BUFFER_INFO)Irp->AssociatedIrp.SystemBuffer;
int rows = DeviceExtension->Rows;
int columns = DeviceExtension->Columns;
unsigned int offset;
__asm__("cli\n\t");
@ -269,21 +269,21 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
offset += (inb_p (CRTC_DATA) << 8);
__asm__("sti\n\t");
pcsbi->dwSize.X = NR_ROWS;
pcsbi->dwSize.Y = NR_COLUMNS;
pcsbi->dwSize.X = rows;
pcsbi->dwSize.Y = columns;
pcsbi->dwCursorPosition.X = (SHORT)(offset % NR_COLUMNS);
pcsbi->dwCursorPosition.Y = (SHORT)(offset / NR_COLUMNS);
pcsbi->dwCursorPosition.X = (SHORT)(offset % columns);
pcsbi->dwCursorPosition.Y = (SHORT)(offset / columns);
pcsbi->wAttributes = DeviceExtension->CharAttribute;
pcsbi->srWindow.Left = 0;
pcsbi->srWindow.Right = NR_COLUMNS - 1;
pcsbi->srWindow.Right = columns - 1;
pcsbi->srWindow.Top = 0;
pcsbi->srWindow.Bottom = NR_ROWS - 1;
pcsbi->srWindow.Bottom = rows - 1;
pcsbi->dwMaximumWindowSize.X = NR_COLUMNS;
pcsbi->dwMaximumWindowSize.Y = NR_ROWS;
pcsbi->dwMaximumWindowSize.X = columns;
pcsbi->dwMaximumWindowSize.Y = rows;
Irp->IoStatus.Information = sizeof (CONSOLE_SCREEN_BUFFER_INFO);
Status = STATUS_SUCCESS;
@ -295,12 +295,9 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
PCONSOLE_SCREEN_BUFFER_INFO pcsbi = (PCONSOLE_SCREEN_BUFFER_INFO)Irp->AssociatedIrp.SystemBuffer;
unsigned int offset;
DeviceExtension->CursorX = pcsbi->dwCursorPosition.X;
DeviceExtension->CursorY = pcsbi->dwCursorPosition.Y;
DeviceExtension->CharAttribute = pcsbi->wAttributes;
offset = (pcsbi->dwCursorPosition.Y * NR_COLUMNS) +
offset = (pcsbi->dwCursorPosition.Y * DeviceExtension->Columns) +
pcsbi->dwCursorPosition.X;
__asm__("cli\n\t");
@ -386,11 +383,9 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2) + 1;
CHECKPOINT
for (dwCount = 0; dwCount < Buf->nLength; dwCount++)
{
vidmem[offset + (dwCount * 2)] = (char) Buf->wAttribute;
@ -412,7 +407,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2) + 1;
for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pAttr++)
@ -436,7 +431,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2) + 1;
for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pAttr++)
@ -466,7 +461,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2);
CHECKPOINT
@ -492,7 +487,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2);
for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pChar++)
@ -516,7 +511,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
DWORD dwCount;
vidmem = DeviceExtension->VideoMemory;
offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
(Buf->dwCoord.X * 2) + 1;
for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pChar++)
@ -543,10 +538,6 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
}
VOID ScrStartIo(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
// PIO_STACK_LOCATION stk = IoGetCurrentIrpStackLocation(Irp);
@ -615,4 +606,3 @@ DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
return (STATUS_SUCCESS);
}