46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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Copyright 2022 Mattia Giambirtone & Contributors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef TSOS_DRV_VGA_SCREEN_H
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#define TSOS_DRV_VGA_SCREEN_H
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#include "kernel/types.h"
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#include "kernel/drivers/ports/ports.h"
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#define VMEM_ADDRESS 0xb8000
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#define VMEM_BUF ((byte*)VMEM_ADDRESS)
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#define MAX_ROWS 25
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#define MAX_COLS 80
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#define SCREEN_SIZE MAX_ROWS * MAX_COLS
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#define LIGHT_GREY_ON_BLACK 0x07
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#define RED_ON_WHITE 0xf4
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#define VGA_TABSIZE 4
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// VGA I/O ports
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#define REG_SCREEN_CTRL 0x3d4
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#define REG_SCREEN_DATA 0x3d5
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// Public API
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void clearScreen(void);
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void kprint(const char* message);
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void kprintln(const char* message);
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void kprintf(const char *fmt, ...);
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#endif |