mirror of
https://github.com/reactos/reactos.git
synced 2024-12-26 00:54:40 +00:00
cleanup
svn path=/trunk/; revision=402
This commit is contained in:
Eric Kohl
parent
81b9b25bc7
commit
94f82b0796
1 changed files with 52 additions and 62 deletions
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@ -16,10 +16,14 @@
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#define NR_ROWS 50
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#define NR_COLUMNS 80
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#define NR_SCANLINES 8
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#define CRTC_COMMAND 0x3d4
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#define CRTC_DATA 0x3d5
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#define CRTC_COLUMNS 0x01
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#define CRTC_ROWS 0x12
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#define CRTC_SCANLINES 0x09
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#define CRTC_CURSORSTART 0x0a
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#define CRTC_CURSOREND 0x0b
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#define CRTC_CURSORPOSLO 0x0f
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@ -43,15 +47,14 @@
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typedef struct _DEVICE_EXTENSION
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{
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PBYTE VideoMemory;
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SHORT CursorX;
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SHORT CursorY;
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PBYTE VideoMemory; /* Pointer to video memory */
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DWORD CursorSize;
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BOOL CursorVisible;
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WORD CharAttribute;
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DWORD Mode;
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BYTE ScanLines; /* Height of a text line */
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BYTE Rows; /* Number of rows */
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BYTE Columns; /* Number of columns */
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} DEVICE_EXTENSION, *PDEVICE_EXTENSION;
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@ -63,7 +66,6 @@ typedef struct _DEVICE_EXTENSION
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NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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{
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// PIO_STACK_LOCATION stk = IoGetCurrentIrpStackLocation (Irp);
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PDEVICE_EXTENSION DeviceExtension;
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NTSTATUS Status;
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unsigned int offset;
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@ -72,6 +74,7 @@ NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DeviceExtension = DeviceObject->DeviceExtension;
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/* initialize device extension */
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/* get pointer to video memory */
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/* FIXME : use MmMapIoSpace() */
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DeviceExtension->VideoMemory = (PBYTE)(IDMAP_BASE + VIDMEM_BASE);
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@ -96,23 +99,18 @@ NTSTATUS ScrCreate (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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__asm__("sti\n\t");
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DeviceExtension->CursorX = (SHORT)(offset % NR_COLUMNS);
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DeviceExtension->CursorY = (SHORT)(offset / NR_COLUMNS);
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DeviceExtension->ScanLines = NR_SCANLINES; /* FIXME: read it from CRTC */
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DeviceExtension->Rows = NR_ROWS; /* FIXME: read it from CRTC */
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DeviceExtension->Columns = NR_COLUMNS; /* FIXME: read it from CRTC */
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DeviceExtension->CursorSize = 5; /* FIXME: value correct?? */
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DeviceExtension->CursorVisible = TRUE;
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DeviceExtension->ScanLines = 8; /* FIXME: read it from CRTC */
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/* more initialization */
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DeviceExtension->CharAttribute = 0x17; /* light grey on blue */
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DeviceExtension->Mode = ENABLE_PROCESSED_OUTPUT |
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ENABLE_WRAP_AT_EOL_OUTPUT;
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/* FIXME: more initialization?? */
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/* show blinking cursor */
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/* FIXME: calculate cursor size */
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__asm__("cli\n\t");
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@ -140,18 +138,20 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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char *vidmem;
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int i, j, offset;
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int cursorx, cursory;
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int rows, columns;
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DeviceExtension = DeviceObject->DeviceExtension;
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vidmem = DeviceExtension->VideoMemory;
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// cursorx = DeviceExtension->CursorX;
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// cursory = DeviceExtension->CursorY;
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outb_p(CRTC_COMMAND, CRTC_CURSORPOSHI);
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offset = inb_p(CRTC_DATA)<<8;
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outb_p(CRTC_COMMAND, CRTC_CURSORPOSLO);
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offset += inb_p(CRTC_DATA);
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rows = DeviceExtension->Rows;
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columns = DeviceExtension->Columns;
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cursory = offset / NR_COLUMNS;
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cursorx = offset % NR_COLUMNS;
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outb_p(CRTC_COMMAND, CRTC_CURSORPOSHI);
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offset = inb_p(CRTC_DATA)<<8;
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outb_p(CRTC_COMMAND, CRTC_CURSORPOSLO);
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offset += inb_p(CRTC_DATA);
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cursory = offset / columns;
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cursorx = offset % columns;
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for (i = 0; i < stk->Parameters.Write.Length; i++, pch++)
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{
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@ -164,7 +164,7 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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}
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else if (cursory > 0)
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{
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cursorx = NR_COLUMNS - 1;
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cursorx = columns - 1;
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cursory--;
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}
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break;
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@ -181,10 +181,10 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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offset = TAB_WIDTH - (cursorx % TAB_WIDTH);
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for (j = 0; j < offset; j++)
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{
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vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2)] = ' ';
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vidmem[(cursorx * 2) + (cursory * columns * 2)] = ' ';
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cursorx++;
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if (cursorx >= NR_COLUMNS)
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if (cursorx >= columns)
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{
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cursory++;
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cursorx = 0;
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@ -193,10 +193,10 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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break;
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default:
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vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2)] = *pch;
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vidmem[(cursorx * 2) + (cursory * NR_COLUMNS * 2) + 1] = (char) DeviceExtension->CharAttribute;
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vidmem[(cursorx * 2) + (cursory * columns * 2)] = *pch;
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vidmem[(cursorx * 2) + (cursory * columns * 2) + 1] = (char) DeviceExtension->CharAttribute;
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cursorx++;
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if (cursorx >= NR_COLUMNS)
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if (cursorx >= columns)
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{
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cursory++;
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cursorx = 0;
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@ -205,27 +205,27 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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}
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if (cursory >= NR_ROWS)
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if (cursory >= rows)
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{
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unsigned short *LinePtr;
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memcpy (vidmem,
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&vidmem[NR_COLUMNS * 2],
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NR_COLUMNS * (NR_ROWS - 1) * 2);
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&vidmem[columns * 2],
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columns * (rows - 1) * 2);
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LinePtr = (unsigned short *) &vidmem[NR_COLUMNS * (NR_ROWS - 1) * 2];
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LinePtr = (unsigned short *) &vidmem[columns * (rows - 1) * 2];
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for (j = 0; j < NR_COLUMNS; j++)
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for (j = 0; j < columns; j++)
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{
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LinePtr[j] = DeviceExtension->CharAttribute << 8;
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}
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cursory = NR_ROWS - 1;
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cursory = rows - 1;
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}
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}
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/* Set the cursor position */
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offset = (cursory * NR_COLUMNS) + cursorx;
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offset = (cursory * columns) + cursorx;
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outb_p (CRTC_COMMAND, CRTC_CURSORPOSLO);
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outb_p (CRTC_DATA, offset);
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@ -233,8 +233,6 @@ NTSTATUS ScrWrite (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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offset >>= 8;
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outb_p (CRTC_DATA, offset);
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DeviceExtension->CursorX = cursorx;
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DeviceExtension->CursorY = cursory;
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Status = STATUS_SUCCESS;
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@ -260,6 +258,8 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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case IOCTL_CONSOLE_GET_SCREEN_BUFFER_INFO:
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{
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PCONSOLE_SCREEN_BUFFER_INFO pcsbi = (PCONSOLE_SCREEN_BUFFER_INFO)Irp->AssociatedIrp.SystemBuffer;
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int rows = DeviceExtension->Rows;
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int columns = DeviceExtension->Columns;
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unsigned int offset;
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__asm__("cli\n\t");
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@ -269,21 +269,21 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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offset += (inb_p (CRTC_DATA) << 8);
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__asm__("sti\n\t");
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pcsbi->dwSize.X = NR_ROWS;
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pcsbi->dwSize.Y = NR_COLUMNS;
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pcsbi->dwSize.X = rows;
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pcsbi->dwSize.Y = columns;
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pcsbi->dwCursorPosition.X = (SHORT)(offset % NR_COLUMNS);
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pcsbi->dwCursorPosition.Y = (SHORT)(offset / NR_COLUMNS);
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pcsbi->dwCursorPosition.X = (SHORT)(offset % columns);
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pcsbi->dwCursorPosition.Y = (SHORT)(offset / columns);
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pcsbi->wAttributes = DeviceExtension->CharAttribute;
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pcsbi->srWindow.Left = 0;
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pcsbi->srWindow.Right = NR_COLUMNS - 1;
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pcsbi->srWindow.Right = columns - 1;
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pcsbi->srWindow.Top = 0;
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pcsbi->srWindow.Bottom = NR_ROWS - 1;
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pcsbi->srWindow.Bottom = rows - 1;
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pcsbi->dwMaximumWindowSize.X = NR_COLUMNS;
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pcsbi->dwMaximumWindowSize.Y = NR_ROWS;
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pcsbi->dwMaximumWindowSize.X = columns;
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pcsbi->dwMaximumWindowSize.Y = rows;
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Irp->IoStatus.Information = sizeof (CONSOLE_SCREEN_BUFFER_INFO);
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Status = STATUS_SUCCESS;
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@ -295,12 +295,9 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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PCONSOLE_SCREEN_BUFFER_INFO pcsbi = (PCONSOLE_SCREEN_BUFFER_INFO)Irp->AssociatedIrp.SystemBuffer;
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unsigned int offset;
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DeviceExtension->CursorX = pcsbi->dwCursorPosition.X;
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DeviceExtension->CursorY = pcsbi->dwCursorPosition.Y;
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DeviceExtension->CharAttribute = pcsbi->wAttributes;
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offset = (pcsbi->dwCursorPosition.Y * NR_COLUMNS) +
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offset = (pcsbi->dwCursorPosition.Y * DeviceExtension->Columns) +
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pcsbi->dwCursorPosition.X;
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__asm__("cli\n\t");
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@ -386,11 +383,9 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2) + 1;
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CHECKPOINT
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for (dwCount = 0; dwCount < Buf->nLength; dwCount++)
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{
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vidmem[offset + (dwCount * 2)] = (char) Buf->wAttribute;
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@ -412,7 +407,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2) + 1;
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for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pAttr++)
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@ -436,7 +431,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2) + 1;
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for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pAttr++)
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@ -466,7 +461,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2);
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CHECKPOINT
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@ -492,7 +487,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2);
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for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pChar++)
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@ -516,7 +511,7 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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DWORD dwCount;
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vidmem = DeviceExtension->VideoMemory;
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offset = (Buf->dwCoord.Y * NR_COLUMNS * 2) +
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offset = (Buf->dwCoord.Y * DeviceExtension->Columns * 2) +
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(Buf->dwCoord.X * 2) + 1;
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for (dwCount = 0; dwCount < stk->Parameters.Write.Length; dwCount++, pChar++)
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@ -543,10 +538,6 @@ NTSTATUS ScrIoControl (PDEVICE_OBJECT DeviceObject, PIRP Irp)
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}
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VOID ScrStartIo(PDEVICE_OBJECT DeviceObject, PIRP Irp)
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{
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// PIO_STACK_LOCATION stk = IoGetCurrentIrpStackLocation(Irp);
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@ -615,4 +606,3 @@ DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
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return (STATUS_SUCCESS);
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}
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