/*
-* PROJECT: ReactOS Setup Driver
-* LICENSE: GPL - See COPYING in the top level directory
-* FILE: drivers/setup/blue/font.c
-* PURPOSE: Loading specific fonts into VGA
-* PROGRAMMERS: Aleksey Bragin (aleksey@reactos.org)
-* Colin Finck (mail@colinfinck.de)
-* Christoph von Wittich (christoph_vw@reactos.org)
-*/
+ * PROJECT: ReactOS Console Text-Mode Device Driver
+ * LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
+ * PURPOSE: Loading specific fonts into VGA.
+ * COPYRIGHT: Copyright 2008-2019 Aleksey Bragin (aleksey@reactos.org)
+ * Copyright 2008-2019 Colin Finck (mail@colinfinck.de)
+ * Copyright 2008-2019 Christoph von Wittich (christoph_vw@reactos.org)
+ */
/* INCLUDES ***************************************************************/
#include "blue.h"
-#include <ntddk.h>
+//
+// FIXME: For the moment we support only a fixed 256-char 8-bit font.
+//
-#define NDEBUG
-#include <debug.h>
-
-VOID OpenBitPlane();
-VOID CloseBitPlane();
-VOID LoadFont(PUCHAR Bitplane, PUCHAR FontBitfield);
+VOID OpenBitPlane(VOID);
+VOID CloseBitPlane(VOID);
+VOID LoadFont(_In_ PUCHAR Bitplane, _In_ PUCHAR FontBitfield);
/* FUNCTIONS ****************************************************************/
VOID
-ScrLoadFontTable(UINT32 CodePage)
+ScrSetFont(
+ _In_ PUCHAR FontBitfield)
{
PHYSICAL_ADDRESS BaseAddress;
PUCHAR Bitplane;
- PUCHAR FontBitfield = NULL;
- NTSTATUS Status = STATUS_SUCCESS;
- FontBitfield = (PUCHAR) ExAllocatePoolWithTag(NonPagedPool, 2048, TAG_BLUE);
- if(FontBitfield)
- {
- /* open bit plane for font table access */
- OpenBitPlane();
+ /* open bit plane for font table access */
+ OpenBitPlane();
- /* get pointer to video memory */
- BaseAddress.QuadPart = BITPLANE_BASE;
- Bitplane = (PUCHAR)MmMapIoSpace (BaseAddress, 0xFFFF, MmNonCached);
+ /* get pointer to video memory */
+ BaseAddress.QuadPart = BITPLANE_BASE;
+ Bitplane = (PUCHAR)MmMapIoSpace(BaseAddress, 0xFFFF, MmNonCached);
- Status = ExtractFont(CodePage, FontBitfield);
- if (NT_SUCCESS(Status))
- LoadFont(Bitplane, FontBitfield);
+ LoadFont(Bitplane, FontBitfield);
- MmUnmapIoSpace(Bitplane, 0xFFFF);
- ExFreePool(FontBitfield);
+ MmUnmapIoSpace(Bitplane, 0xFFFF);
- /* close bit plane */
- CloseBitPlane();
- }
+ /* close bit plane */
+ CloseBitPlane();
}
/* PRIVATE FUNCTIONS *********************************************************/
-NTSTATUS ExtractFont(UINT32 CodePage, PUCHAR FontBitField)
-{
- BOOLEAN bFoundFile = FALSE;
- HANDLE Handle;
- NTSTATUS Status;
- CHAR FileName[20];
- IO_STATUS_BLOCK IoStatusBlock;
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING LinkName;
- UNICODE_STRING SourceName;
- CFHEADER CabFileHeader;
- CFFILE CabFile;
- ULONG CabFileOffset = 0;
- LARGE_INTEGER ByteOffset;
- WCHAR SourceBuffer[MAX_PATH] = {L'\0'};
- ULONG ReadCP;
-
- if(KeGetCurrentIrql() != PASSIVE_LEVEL)
- return STATUS_INVALID_DEVICE_STATE;
-
- RtlInitUnicodeString(&LinkName,
- L"\\SystemRoot");
-
- InitializeObjectAttributes(&ObjectAttributes,
- &LinkName,
- OBJ_CASE_INSENSITIVE,
- NULL,
- NULL);
-
- Status = ZwOpenSymbolicLinkObject(&Handle,
- SYMBOLIC_LINK_ALL_ACCESS,
- &ObjectAttributes);
-
- if (!NT_SUCCESS(Status))
- return(Status);
-
- SourceName.Length = 0;
- SourceName.MaximumLength = MAX_PATH * sizeof(WCHAR);
- SourceName.Buffer = SourceBuffer;
-
- Status = ZwQuerySymbolicLinkObject(Handle,
- &SourceName,
- NULL);
- ZwClose(Handle);
-
- Status = RtlAppendUnicodeToString(&SourceName, L"\\vgafonts.cab");
- InitializeObjectAttributes(&ObjectAttributes, &SourceName,
- OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
- NULL, NULL);
-
- Status = ZwCreateFile(&Handle,
- GENERIC_READ,
- &ObjectAttributes, &IoStatusBlock, NULL,
- FILE_ATTRIBUTE_NORMAL,
- 0,
- FILE_OPEN,
- FILE_SYNCHRONOUS_IO_NONALERT,
- NULL, 0);
-
- ByteOffset.LowPart = ByteOffset.HighPart = 0;
-
- if(NT_SUCCESS(Status))
- {
- Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
- &CabFileHeader, sizeof(CabFileHeader), &ByteOffset, NULL);
-
- if(NT_SUCCESS(Status))
- {
- if(CabFileHeader.Signature == CAB_SIGNATURE)
- {
- // We have a valid CAB file!
- // Read the file table now and decrement the file count on every file. When it's zero, we read the complete table.
- ByteOffset.LowPart = CabFileHeader.FileTableOffset;
-
- while(CabFileHeader.FileCount)
- {
- Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
- &CabFile, sizeof(CabFile), &ByteOffset, NULL);
-
- if(NT_SUCCESS(Status))
- {
- ByteOffset.LowPart += sizeof(CabFile);
-
- // We assume here that the file name is max. 19 characters (+ 1 NULL character) long.
- // This should be enough for our purpose.
- Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
- FileName, sizeof(FileName), &ByteOffset, NULL);
-
- if(NT_SUCCESS(Status))
- {
- if(!bFoundFile)
- {
- Status = RtlCharToInteger(FileName, 0, &ReadCP);
- if (NT_SUCCESS(Status) && ReadCP == CodePage)
- {
- // We got the correct file.
- // Save the offset and loop through the rest of the file table to find the position, where the actual data starts.
- CabFileOffset = CabFile.FileOffset;
- bFoundFile = TRUE;
- }
- }
-
- ByteOffset.LowPart += strlen(FileName) + 1;
- }
- }
-
- CabFileHeader.FileCount--;
- }
-
- // 8 = Size of a CFFOLDER structure (see cabman). As we don't need the values of that structure, just increase the offset here.
- ByteOffset.LowPart += 8;
- ByteOffset.LowPart += CabFileOffset;
-
- // ByteOffset now contains the offset of the actual data, so we can read the RAW font
- Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
- FontBitField, 2048, &ByteOffset, NULL);
- ZwClose(Handle);
- return STATUS_SUCCESS;
- }
- else
- {
- DPRINT1("Error: CAB signature is missing!\n");
- Status = STATUS_UNSUCCESSFUL;
- }
- }
- else
- DPRINT1("Error: Cannot read from file\n");
-
- ZwClose(Handle);
- return Status;
- }
- else
- {
- DPRINT1("Error: Cannot open vgafonts.cab\n");
- return Status;
- }
-}
-
/* Font-load specific funcs */
VOID
-OpenBitPlane()
+OpenBitPlane(VOID)
{
/* disable interrupts */
_disable();
/* sequence reg */
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR (SEQ_DATA, 0x01);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_ENABLE_WRT_PLANE); WRITE_PORT_UCHAR (SEQ_DATA, 0x04);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_MEM_MODE); WRITE_PORT_UCHAR (SEQ_DATA, 0x07);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR (SEQ_DATA, 0x03);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR(SEQ_DATA, 0x01);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_ENABLE_WRT_PLANE); WRITE_PORT_UCHAR(SEQ_DATA, 0x04);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_MEM_MODE); WRITE_PORT_UCHAR(SEQ_DATA, 0x07);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR(SEQ_DATA, 0x03);
/* graphic reg */
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_READ_PLANE); WRITE_PORT_UCHAR (GCT_DATA, 0x02);
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_RW_MODES); WRITE_PORT_UCHAR (GCT_DATA, 0x00);
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_GRAPH_MODE); WRITE_PORT_UCHAR (GCT_DATA, 0x00);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_READ_PLANE); WRITE_PORT_UCHAR(GCT_DATA, 0x02);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_RW_MODES); WRITE_PORT_UCHAR(GCT_DATA, 0x00);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_GRAPH_MODE); WRITE_PORT_UCHAR(GCT_DATA, 0x00);
/* enable interrupts */
_enable();
}
VOID
-CloseBitPlane()
+CloseBitPlane(VOID)
{
/* disable interrupts */
_disable();
/* sequence reg */
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR (SEQ_DATA, 0x01);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_ENABLE_WRT_PLANE); WRITE_PORT_UCHAR (SEQ_DATA, 0x03);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_MEM_MODE); WRITE_PORT_UCHAR (SEQ_DATA, 0x03);
- WRITE_PORT_UCHAR (SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR (SEQ_DATA, 0x03);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR(SEQ_DATA, 0x01);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_ENABLE_WRT_PLANE); WRITE_PORT_UCHAR(SEQ_DATA, 0x03);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_MEM_MODE); WRITE_PORT_UCHAR(SEQ_DATA, 0x03);
+ WRITE_PORT_UCHAR(SEQ_COMMAND, SEQ_RESET); WRITE_PORT_UCHAR(SEQ_DATA, 0x03);
/* graphic reg */
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_READ_PLANE); WRITE_PORT_UCHAR (GCT_DATA, 0x00);
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_RW_MODES); WRITE_PORT_UCHAR (GCT_DATA, 0x10);
- WRITE_PORT_UCHAR (GCT_COMMAND, GCT_GRAPH_MODE); WRITE_PORT_UCHAR (GCT_DATA, 0x0e);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_READ_PLANE); WRITE_PORT_UCHAR(GCT_DATA, 0x00);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_RW_MODES); WRITE_PORT_UCHAR(GCT_DATA, 0x10);
+ WRITE_PORT_UCHAR(GCT_COMMAND, GCT_GRAPH_MODE); WRITE_PORT_UCHAR(GCT_DATA, 0x0e);
/* enable interrupts */
_enable();
}
VOID
-LoadFont(PUCHAR Bitplane, PUCHAR FontBitfield)
+LoadFont(
+ _In_ PUCHAR Bitplane,
+ _In_ PUCHAR FontBitfield)
{
- UINT32 i,j;
+ UINT32 i, j;
- for (i=0; i<256; i++)
+ for (i = 0; i < 256; i++)
{
- for (j=0; j<8; j++)
+ for (j = 0; j < 8; j++)
{
- *Bitplane = FontBitfield[i*8+j];
+ *Bitplane = FontBitfield[i * 8 + j];
Bitplane++;
}
// padding
- for (j=8; j<32; j++)
+ for (j = 8; j < 32; j++)
{
*Bitplane = 0;
Bitplane++;
projects / reactos.git / blobdiff