Interrupts :D
This commit is contained in:
Justus Wolff
4
makefile
4
makefile
@@ -1,16 +1,18 @@
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build: prepare copygrub
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nasm -felf32 src/bootload/boot.asm -o build/boot.o # entrypoint for grub
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nasm -felf32 src/misc/interrupts.asm -o build/intasm.o # interrupt assembly part
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#nasm -felf32 src/kernel/driverdriver.asm -o build/drivdriv.o # driver code for drivers
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gcc -c src/kernel/entry.c -o build/kernel.o -ffreestanding -O2 -Wall -Wextra -m32 # kernel
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gcc -c src/kernel/stdlib.c -o build/stdlib.o -ffreestanding -O2 -Wall -Wextra -m32 # stdlib
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gcc -c src/kernel/graphics.c -o build/graphics.o -ffreestanding -O2 -Wall -Wextra -m32 # VGA graphics
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gcc -c src/kernel/tty.c -o build/tty.o -ffreestanding -O2 -Wall -Wextra -m32 # tty
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gcc -c src/kernel/interrupts.c -o build/interrupts.o -ffreestanding -O2 -Wall -Wextra -m32 # interrupts, C side
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gcc -c initrd/vga/main.c -o build/initrddir/vga_graph -ffreestanding -O2 -Wall -Wextra -m32 # initrd/vga driver
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tar -czf build/initrd build/initrddir/* # build initrd
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gcc -z noexecstack -m32 -T linker.ld -o build/linked -ffreestanding -O2 -nostdlib build/tty.o build/graphics.o build/boot.o build/kernel.o build/stdlib.o -fno-pie -fno-pic -no-pie # link
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gcc -z noexecstack -m32 -T linker.ld -o build/linked -ffreestanding -O2 -nostdlib build/interrupts.o build/intasm.o build/tty.o build/graphics.o build/boot.o build/kernel.o build/stdlib.o -fno-pie -fno-pic -no-pie # link
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cp build/linked build/grub/boot/kernel # copy kernel over to grub template
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cp build/initrd build/grub/boot/JPOS.initrd # copy initrd to grub template
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@@ -3,184 +3,32 @@
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#include "stdlib.h"
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#include "tty.h"
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// these values are for 320*200*256
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typedef struct {
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uint8_t r;
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uint8_t g;
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uint8_t b;
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} VGA_pixel;
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static const VGA_pixel VGA_colors_black = {
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0x00,
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0x00,
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0x00
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};
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static const VGA_pixel VGA_colors_white = {
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0xFF,
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0xFF,
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0xFF
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};
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extern const VGA_pixel VGA_colors_black;
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extern const VGA_pixel VGA_colors_white;
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extern const uint8_t VGA_basic8x8font[128][8];
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extern uint8_t VGA_palette[256][3];
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extern uint8_t* VGA_fbuf;
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extern uint8_t VGA_values[];
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extern size_t VGA_sizex;
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extern size_t VGA_sizey;
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extern size_t VGA_rsx;
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extern size_t VGA_rsy;
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static uint8_t VGA_basic8x8font[128][8] = {
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0000 (nul)
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0001
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0002
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0003
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0004
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0005
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0006
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0007
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0008
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0009
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000A
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000B
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000C
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000D
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000E
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000F
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0010
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0011
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0012
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0013
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0014
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0015
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0016
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0017
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0018
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0019
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001A
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001B
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001C
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001D
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001E
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001F
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0020 (space)
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{ 0x18, 0x3C, 0x3C, 0x18, 0x18, 0x00, 0x18, 0x00}, // U+0021 (!)
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{ 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0022 (")
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{ 0x36, 0x36, 0x7F, 0x36, 0x7F, 0x36, 0x36, 0x00}, // U+0023 (#)
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{ 0x0C, 0x3E, 0x03, 0x1E, 0x30, 0x1F, 0x0C, 0x00}, // U+0024 ($)
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{ 0x00, 0x63, 0x33, 0x18, 0x0C, 0x66, 0x63, 0x00}, // U+0025 (%)
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{ 0x1C, 0x36, 0x1C, 0x6E, 0x3B, 0x33, 0x6E, 0x00}, // U+0026 (&)
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{ 0x06, 0x06, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0027 (')
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{ 0x18, 0x0C, 0x06, 0x06, 0x06, 0x0C, 0x18, 0x00}, // U+0028 (()
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{ 0x06, 0x0C, 0x18, 0x18, 0x18, 0x0C, 0x06, 0x00}, // U+0029 ())
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{ 0x00, 0x66, 0x3C, 0xFF, 0x3C, 0x66, 0x00, 0x00}, // U+002A (*)
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{ 0x00, 0x0C, 0x0C, 0x3F, 0x0C, 0x0C, 0x00, 0x00}, // U+002B (+)
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0C, 0x06}, // U+002C (,)
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{ 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00}, // U+002D (-)
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0C, 0x00}, // U+002E (.)
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{ 0x60, 0x30, 0x18, 0x0C, 0x06, 0x03, 0x01, 0x00}, // U+002F (/)
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{ 0x3E, 0x63, 0x73, 0x7B, 0x6F, 0x67, 0x3E, 0x00}, // U+0030 (0)
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{ 0x0C, 0x0E, 0x0C, 0x0C, 0x0C, 0x0C, 0x3F, 0x00}, // U+0031 (1)
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{ 0x1E, 0x33, 0x30, 0x1C, 0x06, 0x33, 0x3F, 0x00}, // U+0032 (2)
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{ 0x1E, 0x33, 0x30, 0x1C, 0x30, 0x33, 0x1E, 0x00}, // U+0033 (3)
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{ 0x38, 0x3C, 0x36, 0x33, 0x7F, 0x30, 0x78, 0x00}, // U+0034 (4)
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{ 0x3F, 0x03, 0x1F, 0x30, 0x30, 0x33, 0x1E, 0x00}, // U+0035 (5)
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{ 0x1C, 0x06, 0x03, 0x1F, 0x33, 0x33, 0x1E, 0x00}, // U+0036 (6)
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{ 0x3F, 0x33, 0x30, 0x18, 0x0C, 0x0C, 0x0C, 0x00}, // U+0037 (7)
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{ 0x1E, 0x33, 0x33, 0x1E, 0x33, 0x33, 0x1E, 0x00}, // U+0038 (8)
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{ 0x1E, 0x33, 0x33, 0x3E, 0x30, 0x18, 0x0E, 0x00}, // U+0039 (9)
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{ 0x00, 0x0C, 0x0C, 0x00, 0x00, 0x0C, 0x0C, 0x00}, // U+003A (:)
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{ 0x00, 0x0C, 0x0C, 0x00, 0x00, 0x0C, 0x0C, 0x06}, // U+003B (;)
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{ 0x18, 0x0C, 0x06, 0x03, 0x06, 0x0C, 0x18, 0x00}, // U+003C (<)
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{ 0x00, 0x00, 0x3F, 0x00, 0x00, 0x3F, 0x00, 0x00}, // U+003D (=)
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{ 0x06, 0x0C, 0x18, 0x30, 0x18, 0x0C, 0x06, 0x00}, // U+003E (>)
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{ 0x1E, 0x33, 0x30, 0x18, 0x0C, 0x00, 0x0C, 0x00}, // U+003F (?)
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{ 0x3E, 0x63, 0x7B, 0x7B, 0x7B, 0x03, 0x1E, 0x00}, // U+0040 (@)
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{ 0x0C, 0x1E, 0x33, 0x33, 0x3F, 0x33, 0x33, 0x00}, // U+0041 (A)
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{ 0x3F, 0x66, 0x66, 0x3E, 0x66, 0x66, 0x3F, 0x00}, // U+0042 (B)
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{ 0x3C, 0x66, 0x03, 0x03, 0x03, 0x66, 0x3C, 0x00}, // U+0043 (C)
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{ 0x1F, 0x36, 0x66, 0x66, 0x66, 0x36, 0x1F, 0x00}, // U+0044 (D)
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{ 0x7F, 0x46, 0x16, 0x1E, 0x16, 0x46, 0x7F, 0x00}, // U+0045 (E)
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{ 0x7F, 0x46, 0x16, 0x1E, 0x16, 0x06, 0x0F, 0x00}, // U+0046 (F)
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{ 0x3C, 0x66, 0x03, 0x03, 0x73, 0x66, 0x7C, 0x00}, // U+0047 (G)
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{ 0x33, 0x33, 0x33, 0x3F, 0x33, 0x33, 0x33, 0x00}, // U+0048 (H)
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{ 0x1E, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0049 (I)
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{ 0x78, 0x30, 0x30, 0x30, 0x33, 0x33, 0x1E, 0x00}, // U+004A (J)
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{ 0x67, 0x66, 0x36, 0x1E, 0x36, 0x66, 0x67, 0x00}, // U+004B (K)
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{ 0x0F, 0x06, 0x06, 0x06, 0x46, 0x66, 0x7F, 0x00}, // U+004C (L)
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{ 0x63, 0x77, 0x7F, 0x7F, 0x6B, 0x63, 0x63, 0x00}, // U+004D (M)
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{ 0x63, 0x67, 0x6F, 0x7B, 0x73, 0x63, 0x63, 0x00}, // U+004E (N)
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{ 0x1C, 0x36, 0x63, 0x63, 0x63, 0x36, 0x1C, 0x00}, // U+004F (O)
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{ 0x3F, 0x66, 0x66, 0x3E, 0x06, 0x06, 0x0F, 0x00}, // U+0050 (P)
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{ 0x1E, 0x33, 0x33, 0x33, 0x3B, 0x1E, 0x38, 0x00}, // U+0051 (Q)
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{ 0x3F, 0x66, 0x66, 0x3E, 0x36, 0x66, 0x67, 0x00}, // U+0052 (R)
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{ 0x1E, 0x33, 0x07, 0x0E, 0x38, 0x33, 0x1E, 0x00}, // U+0053 (S)
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{ 0x3F, 0x2D, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0054 (T)
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{ 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x3F, 0x00}, // U+0055 (U)
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{ 0x33, 0x33, 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x00}, // U+0056 (V)
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{ 0x63, 0x63, 0x63, 0x6B, 0x7F, 0x77, 0x63, 0x00}, // U+0057 (W)
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{ 0x63, 0x63, 0x36, 0x1C, 0x1C, 0x36, 0x63, 0x00}, // U+0058 (X)
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{ 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x0C, 0x1E, 0x00}, // U+0059 (Y)
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{ 0x7F, 0x63, 0x31, 0x18, 0x4C, 0x66, 0x7F, 0x00}, // U+005A (Z)
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{ 0x1E, 0x06, 0x06, 0x06, 0x06, 0x06, 0x1E, 0x00}, // U+005B ([)
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{ 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x40, 0x00}, // U+005C (\)
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{ 0x1E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1E, 0x00}, // U+005D (])
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{ 0x08, 0x1C, 0x36, 0x63, 0x00, 0x00, 0x00, 0x00}, // U+005E (^)
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF}, // U+005F (_)
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{ 0x0C, 0x0C, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0060 (`)
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{ 0x00, 0x00, 0x1E, 0x30, 0x3E, 0x33, 0x6E, 0x00}, // U+0061 (a)
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{ 0x07, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x3B, 0x00}, // U+0062 (b)
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{ 0x00, 0x00, 0x1E, 0x33, 0x03, 0x33, 0x1E, 0x00}, // U+0063 (c)
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{ 0x38, 0x30, 0x30, 0x3e, 0x33, 0x33, 0x6E, 0x00}, // U+0064 (d)
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{ 0x00, 0x00, 0x1E, 0x33, 0x3f, 0x03, 0x1E, 0x00}, // U+0065 (e)
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{ 0x1C, 0x36, 0x06, 0x0f, 0x06, 0x06, 0x0F, 0x00}, // U+0066 (f)
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{ 0x00, 0x00, 0x6E, 0x33, 0x33, 0x3E, 0x30, 0x1F}, // U+0067 (g)
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{ 0x07, 0x06, 0x36, 0x6E, 0x66, 0x66, 0x67, 0x00}, // U+0068 (h)
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{ 0x0C, 0x00, 0x0E, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0069 (i)
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{ 0x30, 0x00, 0x30, 0x30, 0x30, 0x33, 0x33, 0x1E}, // U+006A (j)
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{ 0x07, 0x06, 0x66, 0x36, 0x1E, 0x36, 0x67, 0x00}, // U+006B (k)
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{ 0x0E, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+006C (l)
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{ 0x00, 0x00, 0x33, 0x7F, 0x7F, 0x6B, 0x63, 0x00}, // U+006D (m)
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{ 0x00, 0x00, 0x1F, 0x33, 0x33, 0x33, 0x33, 0x00}, // U+006E (n)
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{ 0x00, 0x00, 0x1E, 0x33, 0x33, 0x33, 0x1E, 0x00}, // U+006F (o)
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{ 0x00, 0x00, 0x3B, 0x66, 0x66, 0x3E, 0x06, 0x0F}, // U+0070 (p)
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{ 0x00, 0x00, 0x6E, 0x33, 0x33, 0x3E, 0x30, 0x78}, // U+0071 (q)
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{ 0x00, 0x00, 0x3B, 0x6E, 0x66, 0x06, 0x0F, 0x00}, // U+0072 (r)
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{ 0x00, 0x00, 0x3E, 0x03, 0x1E, 0x30, 0x1F, 0x00}, // U+0073 (s)
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{ 0x08, 0x0C, 0x3E, 0x0C, 0x0C, 0x2C, 0x18, 0x00}, // U+0074 (t)
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{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x33, 0x6E, 0x00}, // U+0075 (u)
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{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x00}, // U+0076 (v)
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{ 0x00, 0x00, 0x63, 0x6B, 0x7F, 0x7F, 0x36, 0x00}, // U+0077 (w)
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{ 0x00, 0x00, 0x63, 0x36, 0x1C, 0x36, 0x63, 0x00}, // U+0078 (x)
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{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x3E, 0x30, 0x1F}, // U+0079 (y)
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{ 0x00, 0x00, 0x3F, 0x19, 0x0C, 0x26, 0x3F, 0x00}, // U+007A (z)
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{ 0x38, 0x0C, 0x0C, 0x07, 0x0C, 0x0C, 0x38, 0x00}, // U+007B ({)
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{ 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x00}, // U+007C (|)
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{ 0x07, 0x0C, 0x0C, 0x38, 0x0C, 0x0C, 0x07, 0x00}, // U+007D (})
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{ 0x6E, 0x3B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+007E (~)
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} // U+007F
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};
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static uint8_t VGA_palette[256][3];
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void VGA_setchar(virtualConsole* con, uint8_t x, uint8_t y, char val);
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void VGA_renderchar(virtualConsole* con);
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void _VGA_renchar(uint8_t x, uint8_t y, char val, uint8_t fcolor[3], uint8_t bcolor[3]);
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static uint8_t* VGA_fbuf = (unsigned char*)0xA0000;
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static uint8_t VGA_values[] = { // THIS. THIS IS CANCER.
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// MISC
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0x63,
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// SEQ
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0x03, 0x01, 0x0F, 0x00, 0x0E,
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// CRTC
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0x5F,0x4F,0x50,0x82,0x54,0x80,0xBF,0x1F,
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0x00,0x41,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x9C,0x0E,0x8F,0x28,0x40,0x96,0xB9,0xA3,
|
||||
0xFF,
|
||||
|
||||
// GC
|
||||
0x00,0x00,0x00,0x00,0x00,0x40,0x05,0x0F,0xFF,
|
||||
|
||||
// AC
|
||||
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
|
||||
0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
|
||||
0x41,0x00,0x0F,0x00,0x00
|
||||
};
|
||||
void VGA_switch(uint8_t *regs);
|
||||
inline size_t VGA_offset(uint16_t x, uint16_t y) {
|
||||
return x+(y*320);
|
||||
return x+(y*VGA_rsx);
|
||||
}
|
||||
void VGA_setcol(uint8_t index, uint8_t r, uint8_t g, uint8_t b);
|
||||
void VGA_setpal(uint8_t palette[256][3]);
|
||||
void VGA_setpix(uint16_t x, uint16_t y, VGA_pixel pix);
|
||||
void VGA_kstrrend(virtualConsole* con);
|
||||
void VGA_clear(VGA_pixel color);
|
||||
@@ -20,6 +20,25 @@
|
||||
#define ICW4_BUF_MASTER 0x0C /* Buffered mode/master */
|
||||
#define ICW4_SFNM 0x10 /* Special fully nested (not) */
|
||||
#define CASCADE_IRQ 2
|
||||
#define IDT_MAX_DESCRIPTORS 32
|
||||
|
||||
typedef struct {
|
||||
uint16_t isr_low; // The lower 16 bits of the ISR's address
|
||||
uint16_t kernel_cs; // The GDT segment selector that the CPU will load into CS before calling the ISR
|
||||
uint8_t reserved; // Set to zero
|
||||
uint8_t attributes; // Type and attributes; see the IDT page
|
||||
uint16_t isr_high; // The higher 16 bits of the ISR's address
|
||||
} __attribute__((packed)) idt_entry_t;
|
||||
typedef struct {
|
||||
uint16_t limit;
|
||||
uint32_t base;
|
||||
} __attribute__((packed)) idtr_t;
|
||||
typedef struct {
|
||||
uint32_t ds;
|
||||
uint32_t edi, esi, ebp, esp, ebx, edx, ecx, eax;
|
||||
uint32_t int_no, err_code;
|
||||
uint32_t eip, cs, eflags, useresp, ss;
|
||||
} INT_registers_t;
|
||||
|
||||
inline void PIC_sendEOI(uint8_t irq) {
|
||||
if (irq >= 8) { // slave also needs EOI
|
||||
@@ -27,4 +46,17 @@ inline void PIC_sendEOI(uint8_t irq) {
|
||||
}
|
||||
outb(PIC1_COMMAND,PIC_EOI);
|
||||
}
|
||||
extern void PIC_remap(int offset1, int offset2);
|
||||
void PIC_remap(int offset1, int offset2);
|
||||
__attribute__((noreturn))
|
||||
void INT_exhand(INT_registers_t regs);
|
||||
void INT_IRQ(uint8_t IRQ, INT_registers_t regs);
|
||||
void idt_set_descriptor(uint8_t vector, void* isr, uint8_t flags);
|
||||
void idt_init();
|
||||
|
||||
__attribute__((aligned(0x10)))
|
||||
extern idt_entry_t idt[256];
|
||||
extern idtr_t idtr;
|
||||
extern void* isr_stub_table[];
|
||||
extern void* irq_stub_table[];
|
||||
extern uint8_t INT_vectors[IDT_MAX_DESCRIPTORS];
|
||||
extern char *exception_messages[];
|
||||
@@ -4,7 +4,10 @@
|
||||
uint32_t strlen32(char* str);
|
||||
void strrev32(char* str);
|
||||
uint8_t uitoa32(uint32_t x, char* str);
|
||||
void strcon(char* x, char* y);
|
||||
void memcopy(void* dest, void* src, size_t size);
|
||||
void memset(void* dest, size_t size, uint8_t value);
|
||||
__attribute__((noreturn))
|
||||
void kpanic(char* msg);
|
||||
static inline void outb(uint16_t port, uint8_t val) {
|
||||
__asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
|
||||
|
||||
@@ -1,14 +1,20 @@
|
||||
#pragma once
|
||||
#include "stddef.h"
|
||||
|
||||
#define CON_sizex 40
|
||||
#define CON_sizey 25
|
||||
|
||||
typedef struct {
|
||||
void* FU_kupdbuf;
|
||||
char kstdout[8192];
|
||||
uint16_t kstdout_count;
|
||||
uint8_t FU_forecolor[3];
|
||||
uint8_t FU_backcolor[3];
|
||||
char charbuf[40][25];
|
||||
char charbuf[CON_sizex][CON_sizey];
|
||||
uint8_t enableRendering;
|
||||
|
||||
uint16_t keyBuf[1024];
|
||||
size_t keyBufSize;
|
||||
} virtualConsole;
|
||||
typedef void (*FU_kupdbuf_t)(virtualConsole*);
|
||||
|
||||
@@ -16,8 +22,9 @@ typedef void (*FU_kupdbuf_t)(virtualConsole*);
|
||||
extern virtualConsole consoles[consolesAmount];
|
||||
extern uint8_t currentConsole;
|
||||
|
||||
void con_kputchar(virtualConsole* con, char x);
|
||||
void con_kputchar(virtualConsole* con, char x, uint8_t newrender);
|
||||
void con_kputstr(virtualConsole* con, char* x);
|
||||
void con_init(virtualConsole* con);
|
||||
void kputchar(char x);
|
||||
void kputstr(char* x);
|
||||
void con_render();
|
||||
@@ -3,6 +3,7 @@
|
||||
#include "../headers/stdlib.h"
|
||||
#include "../headers/graphics.h"
|
||||
#include "../headers/tty.h"
|
||||
#include "../headers/interrupts.h"
|
||||
|
||||
struct multiboot_info {
|
||||
uint32_t total_size;
|
||||
@@ -41,11 +42,7 @@ void kernel_main(struct multiboot_info* header, uint32_t magic) {
|
||||
VGA_switch(VGA_values);
|
||||
kputstr("OK\n");
|
||||
|
||||
for (uint16_t x=0;x<320;x++) {
|
||||
for (uint16_t y=0;y<200;y++) {
|
||||
VGA_setpix(x,y,(VGA_pixel){0xFF,0xFF,0xFF});
|
||||
}
|
||||
}
|
||||
VGA_clear((VGA_pixel){0xFF,0xFF,0xFF});
|
||||
|
||||
kputstr("Setting up stdout rendering: ");
|
||||
for (uint8_t i=0;i<consolesAmount;i++) {
|
||||
@@ -58,4 +55,23 @@ void kernel_main(struct multiboot_info* header, uint32_t magic) {
|
||||
}
|
||||
kputstr("OK\n");
|
||||
|
||||
kputstr("Setting up interrupts: ");
|
||||
idt_init();
|
||||
kputstr("OK\n");
|
||||
|
||||
kputstr("Setting up IRQs: ");
|
||||
for (uint8_t i=0;i<16;i++) {
|
||||
idt_set_descriptor(i+0x20, irq_stub_table[i], 0x8E);
|
||||
}
|
||||
kputstr("OK\n");
|
||||
|
||||
kputstr("Initializing PICs: ");
|
||||
PIC_remap(0x20,0x28);
|
||||
kputstr("OK\n");
|
||||
|
||||
kputstr("Enabling Interrupts: ");
|
||||
asm volatile("sti");
|
||||
kputstr("OK\n");
|
||||
|
||||
|
||||
}
|
||||
@@ -1,23 +1,211 @@
|
||||
#include "../headers/graphics.h"
|
||||
#include "../headers/tty.h"
|
||||
#include "../headers/stdlib.h"
|
||||
|
||||
const VGA_pixel VGA_colors_black = {
|
||||
0x00,
|
||||
0x00,
|
||||
0x00
|
||||
};
|
||||
const VGA_pixel VGA_colors_white = {
|
||||
0xFF,
|
||||
0xFF,
|
||||
0xFF
|
||||
};
|
||||
uint8_t VGA_palette[256][3] = {};
|
||||
const uint8_t VGA_basic8x8font[128][8] = {
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0000 (nul)
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0001
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0002
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0003
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0004
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0005
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0006
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0007
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0008
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0009
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000A
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000B
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000C
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000D
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000E
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+000F
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0010
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0011
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0012
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0013
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0014
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0015
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0016
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0017
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0018
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0019
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001A
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001B
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001C
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001D
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001E
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+001F
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0020 (space)
|
||||
{ 0x18, 0x3C, 0x3C, 0x18, 0x18, 0x00, 0x18, 0x00}, // U+0021 (!)
|
||||
{ 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0022 (")
|
||||
{ 0x36, 0x36, 0x7F, 0x36, 0x7F, 0x36, 0x36, 0x00}, // U+0023 (#)
|
||||
{ 0x0C, 0x3E, 0x03, 0x1E, 0x30, 0x1F, 0x0C, 0x00}, // U+0024 ($)
|
||||
{ 0x00, 0x63, 0x33, 0x18, 0x0C, 0x66, 0x63, 0x00}, // U+0025 (%)
|
||||
{ 0x1C, 0x36, 0x1C, 0x6E, 0x3B, 0x33, 0x6E, 0x00}, // U+0026 (&)
|
||||
{ 0x06, 0x06, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0027 (')
|
||||
{ 0x18, 0x0C, 0x06, 0x06, 0x06, 0x0C, 0x18, 0x00}, // U+0028 (()
|
||||
{ 0x06, 0x0C, 0x18, 0x18, 0x18, 0x0C, 0x06, 0x00}, // U+0029 ())
|
||||
{ 0x00, 0x66, 0x3C, 0xFF, 0x3C, 0x66, 0x00, 0x00}, // U+002A (*)
|
||||
{ 0x00, 0x0C, 0x0C, 0x3F, 0x0C, 0x0C, 0x00, 0x00}, // U+002B (+)
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0C, 0x06}, // U+002C (,)
|
||||
{ 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00}, // U+002D (-)
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0C, 0x00}, // U+002E (.)
|
||||
{ 0x60, 0x30, 0x18, 0x0C, 0x06, 0x03, 0x01, 0x00}, // U+002F (/)
|
||||
{ 0x3E, 0x63, 0x73, 0x7B, 0x6F, 0x67, 0x3E, 0x00}, // U+0030 (0)
|
||||
{ 0x0C, 0x0E, 0x0C, 0x0C, 0x0C, 0x0C, 0x3F, 0x00}, // U+0031 (1)
|
||||
{ 0x1E, 0x33, 0x30, 0x1C, 0x06, 0x33, 0x3F, 0x00}, // U+0032 (2)
|
||||
{ 0x1E, 0x33, 0x30, 0x1C, 0x30, 0x33, 0x1E, 0x00}, // U+0033 (3)
|
||||
{ 0x38, 0x3C, 0x36, 0x33, 0x7F, 0x30, 0x78, 0x00}, // U+0034 (4)
|
||||
{ 0x3F, 0x03, 0x1F, 0x30, 0x30, 0x33, 0x1E, 0x00}, // U+0035 (5)
|
||||
{ 0x1C, 0x06, 0x03, 0x1F, 0x33, 0x33, 0x1E, 0x00}, // U+0036 (6)
|
||||
{ 0x3F, 0x33, 0x30, 0x18, 0x0C, 0x0C, 0x0C, 0x00}, // U+0037 (7)
|
||||
{ 0x1E, 0x33, 0x33, 0x1E, 0x33, 0x33, 0x1E, 0x00}, // U+0038 (8)
|
||||
{ 0x1E, 0x33, 0x33, 0x3E, 0x30, 0x18, 0x0E, 0x00}, // U+0039 (9)
|
||||
{ 0x00, 0x0C, 0x0C, 0x00, 0x00, 0x0C, 0x0C, 0x00}, // U+003A (:)
|
||||
{ 0x00, 0x0C, 0x0C, 0x00, 0x00, 0x0C, 0x0C, 0x06}, // U+003B (;)
|
||||
{ 0x18, 0x0C, 0x06, 0x03, 0x06, 0x0C, 0x18, 0x00}, // U+003C (<)
|
||||
{ 0x00, 0x00, 0x3F, 0x00, 0x00, 0x3F, 0x00, 0x00}, // U+003D (=)
|
||||
{ 0x06, 0x0C, 0x18, 0x30, 0x18, 0x0C, 0x06, 0x00}, // U+003E (>)
|
||||
{ 0x1E, 0x33, 0x30, 0x18, 0x0C, 0x00, 0x0C, 0x00}, // U+003F (?)
|
||||
{ 0x3E, 0x63, 0x7B, 0x7B, 0x7B, 0x03, 0x1E, 0x00}, // U+0040 (@)
|
||||
{ 0x0C, 0x1E, 0x33, 0x33, 0x3F, 0x33, 0x33, 0x00}, // U+0041 (A)
|
||||
{ 0x3F, 0x66, 0x66, 0x3E, 0x66, 0x66, 0x3F, 0x00}, // U+0042 (B)
|
||||
{ 0x3C, 0x66, 0x03, 0x03, 0x03, 0x66, 0x3C, 0x00}, // U+0043 (C)
|
||||
{ 0x1F, 0x36, 0x66, 0x66, 0x66, 0x36, 0x1F, 0x00}, // U+0044 (D)
|
||||
{ 0x7F, 0x46, 0x16, 0x1E, 0x16, 0x46, 0x7F, 0x00}, // U+0045 (E)
|
||||
{ 0x7F, 0x46, 0x16, 0x1E, 0x16, 0x06, 0x0F, 0x00}, // U+0046 (F)
|
||||
{ 0x3C, 0x66, 0x03, 0x03, 0x73, 0x66, 0x7C, 0x00}, // U+0047 (G)
|
||||
{ 0x33, 0x33, 0x33, 0x3F, 0x33, 0x33, 0x33, 0x00}, // U+0048 (H)
|
||||
{ 0x1E, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0049 (I)
|
||||
{ 0x78, 0x30, 0x30, 0x30, 0x33, 0x33, 0x1E, 0x00}, // U+004A (J)
|
||||
{ 0x67, 0x66, 0x36, 0x1E, 0x36, 0x66, 0x67, 0x00}, // U+004B (K)
|
||||
{ 0x0F, 0x06, 0x06, 0x06, 0x46, 0x66, 0x7F, 0x00}, // U+004C (L)
|
||||
{ 0x63, 0x77, 0x7F, 0x7F, 0x6B, 0x63, 0x63, 0x00}, // U+004D (M)
|
||||
{ 0x63, 0x67, 0x6F, 0x7B, 0x73, 0x63, 0x63, 0x00}, // U+004E (N)
|
||||
{ 0x1C, 0x36, 0x63, 0x63, 0x63, 0x36, 0x1C, 0x00}, // U+004F (O)
|
||||
{ 0x3F, 0x66, 0x66, 0x3E, 0x06, 0x06, 0x0F, 0x00}, // U+0050 (P)
|
||||
{ 0x1E, 0x33, 0x33, 0x33, 0x3B, 0x1E, 0x38, 0x00}, // U+0051 (Q)
|
||||
{ 0x3F, 0x66, 0x66, 0x3E, 0x36, 0x66, 0x67, 0x00}, // U+0052 (R)
|
||||
{ 0x1E, 0x33, 0x07, 0x0E, 0x38, 0x33, 0x1E, 0x00}, // U+0053 (S)
|
||||
{ 0x3F, 0x2D, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0054 (T)
|
||||
{ 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x3F, 0x00}, // U+0055 (U)
|
||||
{ 0x33, 0x33, 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x00}, // U+0056 (V)
|
||||
{ 0x63, 0x63, 0x63, 0x6B, 0x7F, 0x77, 0x63, 0x00}, // U+0057 (W)
|
||||
{ 0x63, 0x63, 0x36, 0x1C, 0x1C, 0x36, 0x63, 0x00}, // U+0058 (X)
|
||||
{ 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x0C, 0x1E, 0x00}, // U+0059 (Y)
|
||||
{ 0x7F, 0x63, 0x31, 0x18, 0x4C, 0x66, 0x7F, 0x00}, // U+005A (Z)
|
||||
{ 0x1E, 0x06, 0x06, 0x06, 0x06, 0x06, 0x1E, 0x00}, // U+005B ([)
|
||||
{ 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0x40, 0x00}, // U+005C (\)
|
||||
{ 0x1E, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1E, 0x00}, // U+005D (])
|
||||
{ 0x08, 0x1C, 0x36, 0x63, 0x00, 0x00, 0x00, 0x00}, // U+005E (^)
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF}, // U+005F (_)
|
||||
{ 0x0C, 0x0C, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+0060 (`)
|
||||
{ 0x00, 0x00, 0x1E, 0x30, 0x3E, 0x33, 0x6E, 0x00}, // U+0061 (a)
|
||||
{ 0x07, 0x06, 0x06, 0x3E, 0x66, 0x66, 0x3B, 0x00}, // U+0062 (b)
|
||||
{ 0x00, 0x00, 0x1E, 0x33, 0x03, 0x33, 0x1E, 0x00}, // U+0063 (c)
|
||||
{ 0x38, 0x30, 0x30, 0x3e, 0x33, 0x33, 0x6E, 0x00}, // U+0064 (d)
|
||||
{ 0x00, 0x00, 0x1E, 0x33, 0x3f, 0x03, 0x1E, 0x00}, // U+0065 (e)
|
||||
{ 0x1C, 0x36, 0x06, 0x0f, 0x06, 0x06, 0x0F, 0x00}, // U+0066 (f)
|
||||
{ 0x00, 0x00, 0x6E, 0x33, 0x33, 0x3E, 0x30, 0x1F}, // U+0067 (g)
|
||||
{ 0x07, 0x06, 0x36, 0x6E, 0x66, 0x66, 0x67, 0x00}, // U+0068 (h)
|
||||
{ 0x0C, 0x00, 0x0E, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+0069 (i)
|
||||
{ 0x30, 0x00, 0x30, 0x30, 0x30, 0x33, 0x33, 0x1E}, // U+006A (j)
|
||||
{ 0x07, 0x06, 0x66, 0x36, 0x1E, 0x36, 0x67, 0x00}, // U+006B (k)
|
||||
{ 0x0E, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x1E, 0x00}, // U+006C (l)
|
||||
{ 0x00, 0x00, 0x33, 0x7F, 0x7F, 0x6B, 0x63, 0x00}, // U+006D (m)
|
||||
{ 0x00, 0x00, 0x1F, 0x33, 0x33, 0x33, 0x33, 0x00}, // U+006E (n)
|
||||
{ 0x00, 0x00, 0x1E, 0x33, 0x33, 0x33, 0x1E, 0x00}, // U+006F (o)
|
||||
{ 0x00, 0x00, 0x3B, 0x66, 0x66, 0x3E, 0x06, 0x0F}, // U+0070 (p)
|
||||
{ 0x00, 0x00, 0x6E, 0x33, 0x33, 0x3E, 0x30, 0x78}, // U+0071 (q)
|
||||
{ 0x00, 0x00, 0x3B, 0x6E, 0x66, 0x06, 0x0F, 0x00}, // U+0072 (r)
|
||||
{ 0x00, 0x00, 0x3E, 0x03, 0x1E, 0x30, 0x1F, 0x00}, // U+0073 (s)
|
||||
{ 0x08, 0x0C, 0x3E, 0x0C, 0x0C, 0x2C, 0x18, 0x00}, // U+0074 (t)
|
||||
{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x33, 0x6E, 0x00}, // U+0075 (u)
|
||||
{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x1E, 0x0C, 0x00}, // U+0076 (v)
|
||||
{ 0x00, 0x00, 0x63, 0x6B, 0x7F, 0x7F, 0x36, 0x00}, // U+0077 (w)
|
||||
{ 0x00, 0x00, 0x63, 0x36, 0x1C, 0x36, 0x63, 0x00}, // U+0078 (x)
|
||||
{ 0x00, 0x00, 0x33, 0x33, 0x33, 0x3E, 0x30, 0x1F}, // U+0079 (y)
|
||||
{ 0x00, 0x00, 0x3F, 0x19, 0x0C, 0x26, 0x3F, 0x00}, // U+007A (z)
|
||||
{ 0x38, 0x0C, 0x0C, 0x07, 0x0C, 0x0C, 0x38, 0x00}, // U+007B ({)
|
||||
{ 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x00}, // U+007C (|)
|
||||
{ 0x07, 0x0C, 0x0C, 0x38, 0x0C, 0x0C, 0x07, 0x00}, // U+007D (})
|
||||
{ 0x6E, 0x3B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+007E (~)
|
||||
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} // U+007F
|
||||
};
|
||||
uint8_t* VGA_fbuf = (uint8_t*)0xA0000;
|
||||
uint8_t VGA_values[] = { // THIS. THIS IS CANCER.
|
||||
// MISC
|
||||
0x63,
|
||||
|
||||
// SEQ
|
||||
0x03, 0x01, 0x0F, 0x00, 0x0E,
|
||||
|
||||
// CRTC
|
||||
0x5F,0x4F,0x50,0x82,0x54,0x80,0xBF,0x1F,
|
||||
0x00,0x41,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x9C,0x0E,0x8F,0x28,0x40,0x96,0xB9,0xA3,
|
||||
0xFF,
|
||||
|
||||
// GC
|
||||
0x00,0x00,0x00,0x00,0x00,0x40,0x05,0x0F,0xFF,
|
||||
|
||||
// AC
|
||||
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
|
||||
0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
|
||||
0x41,0x00,0x0F,0x00,0x00
|
||||
};
|
||||
size_t VGA_sizex = 320;
|
||||
size_t VGA_sizey = 200;
|
||||
size_t VGA_rsx = 320;
|
||||
size_t VGA_rsy = 200;
|
||||
|
||||
inline uint8_t _VGA_nearestmul(uint8_t val, uint8_t multiple) {
|
||||
if (val%multiple == 0) {return val;}
|
||||
return val + multiple - (val%multiple);
|
||||
}
|
||||
void _VGA_renchar(uint8_t x, uint8_t y, char val, uint8_t fcolor[3], uint8_t bcolor[3]) {
|
||||
if (val > 127) { // out of bounds, no ascii character
|
||||
if ((unsigned char)val > 127) { // out of bounds, no ascii character
|
||||
return;
|
||||
}
|
||||
for (uint8_t px=0;px<8;px++) {
|
||||
for (uint8_t py=0;py<8;py++) {
|
||||
VGA_setpix(x*8+px,y*8+py,(VGA_basic8x8font[val][py] >> px) & 1 ? *(VGA_pixel*)fcolor : *(VGA_pixel*)bcolor);
|
||||
size_t exX,exY;
|
||||
exX = CON_sizex*8;
|
||||
exY = CON_sizey*8;
|
||||
if (exX == VGA_sizex && exY == VGA_sizey) {
|
||||
VGA_setpix(x*8+px,y*8+py,(VGA_basic8x8font[(unsigned char)val][py] >> px) & 1 ? *(VGA_pixel*)fcolor : *(VGA_pixel*)bcolor);
|
||||
} else { // calculate the difference and based on that scale the font.
|
||||
double nX,nY,sX,sY;
|
||||
nX = VGA_sizex/CON_sizex; // example: 320/40 = 8, the size of our font. perfect!
|
||||
nY = VGA_sizey/CON_sizey; // same here: 200/25 = 8
|
||||
exX = 8; // maybe change this later incase the font ever is transitioned to a dynamic one.
|
||||
exY = 8;
|
||||
sX = nX/exX;
|
||||
sY = nY/exY;
|
||||
|
||||
for (size_t i=0;i<sX;i++) {
|
||||
for (size_t f=0;f<sY;f++) {
|
||||
VGA_setpix(x*(exX/sX) + i + (px/sX), y*(exY/sY) + f + (py/sY), (VGA_basic8x8font[(unsigned char)val][py] >> px) & 1 ? *(VGA_pixel*)fcolor : *(VGA_pixel*)bcolor);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
void VGA_renderchar(virtualConsole* con) {
|
||||
for (uint8_t x=0;x<40;x++) {
|
||||
for (uint8_t y=0;y<25;y++) {
|
||||
for (size_t x=0;x<CON_sizex;x++) {
|
||||
for (size_t y=0;y<CON_sizey;y++) {
|
||||
_VGA_renchar(x, y, con->charbuf[x][y], con->FU_forecolor, con->FU_backcolor);
|
||||
}
|
||||
}
|
||||
@@ -111,18 +299,19 @@ void VGA_setchar(virtualConsole* con, uint8_t x, uint8_t y, char val) {
|
||||
con->charbuf[x][y] = val;
|
||||
}
|
||||
void VGA_kstrrend(virtualConsole* con) {
|
||||
VGA_clear((VGA_pixel){0x00,0x00,0x00});
|
||||
size_t count = con->kstdout_count;
|
||||
char* buf = con->kstdout;
|
||||
|
||||
while (count > (40*25)) {
|
||||
count -= (40*25);
|
||||
buf += (40*25);
|
||||
while (count > (CON_sizex*CON_sizey)) {
|
||||
count -= (CON_sizex*CON_sizey);
|
||||
buf += (CON_sizex*CON_sizey);
|
||||
}
|
||||
|
||||
uint16_t x = 0;
|
||||
uint16_t y = 0;
|
||||
for (uint16_t i=0;i<count;i++) {
|
||||
if (x >= 40) {
|
||||
if (x >= CON_sizex) {
|
||||
x = 0;
|
||||
y ++;
|
||||
}
|
||||
@@ -159,3 +348,21 @@ void VGA_setpix(uint16_t x, uint16_t y, VGA_pixel pix) {
|
||||
}
|
||||
VGA_fbuf[VGA_offset(x,y)] = i;
|
||||
}
|
||||
void VGA_clear(VGA_pixel pix) {
|
||||
uint16_t i; // color index finding code from setpix.
|
||||
// first we round each r, g and b value to the nearest multiple of 0x33
|
||||
uint8_t color[3] = {pix.r, pix.g, pix.b};
|
||||
color[0] = _VGA_nearestmul(color[0], 0x33);
|
||||
color[1] = _VGA_nearestmul(color[1], 0x33);
|
||||
color[2] = _VGA_nearestmul(color[2], 0x33);
|
||||
// then find the matching index in palette
|
||||
for (i=0;i<256;i++) {
|
||||
if (VGA_palette[i][0] == color[0] &&
|
||||
VGA_palette[i][1] == color[1] &&
|
||||
VGA_palette[i][2] == color[2]
|
||||
) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
memset(VGA_fbuf, VGA_rsx*VGA_rsy, i);
|
||||
}
|
||||
@@ -1,5 +1,46 @@
|
||||
#include "../headers/interrupts.h"
|
||||
|
||||
__attribute__((aligned(0x10)))
|
||||
idt_entry_t idt[256] = {};
|
||||
idtr_t idtr = {};
|
||||
char *exception_messages[] = {
|
||||
"Division By Zero",
|
||||
"Debug",
|
||||
"Non Maskable Interrupt",
|
||||
"Breakpoint",
|
||||
"Into Detected Overflow",
|
||||
"Out of Bounds",
|
||||
"Invalid Opcode",
|
||||
"No Coprocessor",
|
||||
|
||||
"Double Fault",
|
||||
"Coprocessor Segment Overrun",
|
||||
"Bad TSS",
|
||||
"Segment Not Present",
|
||||
"Stack Fault",
|
||||
"General Protection Fault",
|
||||
"Page Fault",
|
||||
"Unknown Interrupt",
|
||||
|
||||
"Coprocessor Fault",
|
||||
"Alignment Check",
|
||||
"Machine Check",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved",
|
||||
"Reserved"
|
||||
};
|
||||
|
||||
void PIC_remap(int offset1, int offset2) {
|
||||
outb(PIC1_COMMAND, ICW1_INIT | ICW1_ICW4); // starts the initialization sequence (in cascade mode)
|
||||
outb(PIC2_COMMAND, ICW1_INIT | ICW1_ICW4);
|
||||
@@ -15,3 +56,32 @@ void PIC_remap(int offset1, int offset2) {
|
||||
outb(PIC1_DATA, 0);
|
||||
outb(PIC2_DATA, 0);
|
||||
}
|
||||
void idt_set_descriptor(uint8_t vector, void* isr, uint8_t flags) {
|
||||
idt_entry_t* descriptor = &idt[vector];
|
||||
|
||||
descriptor->isr_low = (uint32_t)isr & 0xFFFF;
|
||||
descriptor->kernel_cs = 0x08;
|
||||
descriptor->attributes = flags;
|
||||
descriptor->isr_high = (uint32_t)isr >> 16;
|
||||
descriptor->reserved = 0;
|
||||
}
|
||||
void INT_exhand(INT_registers_t regs) {
|
||||
char msg[128] = "Exception occured.\nCode: ";
|
||||
char temp[8] = "";
|
||||
uitoa32(regs.int_no, temp);
|
||||
strcon(msg,temp);
|
||||
kpanic(msg);
|
||||
}
|
||||
void INT_IRQ(uint8_t IRQ, INT_registers_t regs) {
|
||||
|
||||
}
|
||||
void idt_init() {
|
||||
idtr.base = (uint32_t)&idt[0];
|
||||
idtr.limit = (uint16_t)sizeof(idt_entry_t) * IDT_MAX_DESCRIPTORS - 1;
|
||||
|
||||
for (uint8_t vector = 0; vector < 32; vector++) {
|
||||
idt_set_descriptor(vector, isr_stub_table[vector], 0x8E);
|
||||
}
|
||||
|
||||
__asm__ volatile ("lidt %0" : : "m"(idtr)); // load the new IDT
|
||||
}
|
||||
@@ -30,8 +30,9 @@ void memcopy(void* dest, void* src, size_t size) {
|
||||
}
|
||||
}
|
||||
void kpanic(char* msg) {
|
||||
for (uint16_t x=0;x<320;x++) {
|
||||
for (uint16_t y=0;y<200;y++) {
|
||||
asm volatile("cli");
|
||||
for (uint16_t x=0;x<VGA_sizex;x++) {
|
||||
for (uint16_t y=0;y<VGA_sizey;y++) {
|
||||
VGA_setpix(x,y,(VGA_pixel){0x00,0xFF,0x00});
|
||||
}
|
||||
}
|
||||
@@ -48,3 +49,11 @@ void kpanic(char* msg) {
|
||||
}
|
||||
while (1) {}
|
||||
}
|
||||
void memset(void* dest, size_t size, uint8_t value) {
|
||||
while (size--) {
|
||||
((uint8_t*)dest)[size] = value;
|
||||
}
|
||||
}
|
||||
void strcon(char* x, char* y) {
|
||||
memcopy(x+strlen32(x),y,strlen32(y)+1);
|
||||
}
|
||||
@@ -5,7 +5,7 @@
|
||||
virtualConsole consoles[consolesAmount];
|
||||
uint8_t currentConsole = 0;
|
||||
void con_dummyrend(virtualConsole* con) {}
|
||||
void con_kputchar(virtualConsole* con, char x) {
|
||||
void con_kputchar(virtualConsole* con, char x, uint8_t newrender) {
|
||||
if (con->kstdout_count == 8192) {
|
||||
for (uint32_t i=0;i<8191;i++) {
|
||||
con->kstdout[i] = con->kstdout[i+1];
|
||||
@@ -13,17 +13,16 @@ void con_kputchar(virtualConsole* con, char x) {
|
||||
con->kstdout_count --;
|
||||
}
|
||||
con->kstdout[con->kstdout_count++] = x;
|
||||
if (&consoles[currentConsole] == con && con->enableRendering) { // current console
|
||||
if (con->FU_kupdbuf != 0x00) {
|
||||
((FU_kupdbuf_t)con->FU_kupdbuf)(con);
|
||||
} else {
|
||||
kpanic("virtualConsole failure:\nFU_kupdbuf is 0x00.");
|
||||
}
|
||||
if (newrender && &consoles[currentConsole] == con && con->enableRendering) {
|
||||
con_render();
|
||||
}
|
||||
}
|
||||
void con_kputstr(virtualConsole* con, char* x) {
|
||||
while (*x != 0) {
|
||||
con_kputchar(con, *x++);
|
||||
con_kputchar(con, *x++, 0);
|
||||
}
|
||||
if (&consoles[currentConsole] == con && con->enableRendering) { // current console
|
||||
con_render();
|
||||
}
|
||||
}
|
||||
void con_init(virtualConsole* con) {
|
||||
@@ -36,10 +35,19 @@ void con_init(virtualConsole* con) {
|
||||
con->FU_backcolor[1] = 0x00;
|
||||
con->FU_backcolor[2] = 0x00;
|
||||
con->enableRendering = 0;
|
||||
con->keyBufSize = 0;
|
||||
}
|
||||
void kputchar(char x) {
|
||||
con_kputchar(&consoles[currentConsole], x);
|
||||
con_kputchar(&consoles[currentConsole], x, 1);
|
||||
}
|
||||
void kputstr(char* x) {
|
||||
con_kputstr(&consoles[currentConsole], x);
|
||||
}
|
||||
void con_render() {
|
||||
virtualConsole* con = &consoles[currentConsole];
|
||||
if (con->FU_kupdbuf != 0x00) {
|
||||
((FU_kupdbuf_t)con->FU_kupdbuf)(con);
|
||||
} else {
|
||||
kpanic("virtualConsole failure:\nFU_kupdbuf is 0x00.");
|
||||
}
|
||||
}
|
||||
125
src/misc/interrupts.asm
Normal file
125
src/misc/interrupts.asm
Normal file
@@ -0,0 +1,125 @@
|
||||
extern INT_exhand
|
||||
extern INT_IRQ
|
||||
|
||||
%macro isr_err_stub 1
|
||||
isr_stub_%+%1:
|
||||
push 0
|
||||
push %1
|
||||
|
||||
pusha
|
||||
mov ax, ds
|
||||
push eax
|
||||
mov ax, 0x08
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
|
||||
call INT_exhand
|
||||
|
||||
pop eax
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
popa
|
||||
add esp, 8
|
||||
sti
|
||||
iret
|
||||
%endmacro
|
||||
|
||||
%macro isr_no_err_stub 1
|
||||
isr_stub_%+%1:
|
||||
;call INT_exhand
|
||||
sti
|
||||
iret
|
||||
%endmacro
|
||||
|
||||
%macro irq_stub 1
|
||||
irq_stub_%+%1:
|
||||
push 0
|
||||
push %1
|
||||
|
||||
pusha
|
||||
mov ax, ds
|
||||
push eax
|
||||
mov ax, 0x08
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov fs, ax
|
||||
mov gs, ax
|
||||
call INT_IRQ
|
||||
pop ebx
|
||||
mov ds, bx
|
||||
mov es, bx
|
||||
mov fs, bx
|
||||
mov gs, bx
|
||||
popa
|
||||
add esp, 8
|
||||
%endmacro
|
||||
|
||||
isr_no_err_stub 0
|
||||
isr_no_err_stub 1
|
||||
isr_no_err_stub 2
|
||||
isr_no_err_stub 3
|
||||
isr_no_err_stub 4
|
||||
isr_no_err_stub 5
|
||||
isr_no_err_stub 6
|
||||
isr_no_err_stub 7
|
||||
isr_err_stub 8
|
||||
isr_no_err_stub 9
|
||||
isr_err_stub 10
|
||||
isr_err_stub 11
|
||||
isr_err_stub 12
|
||||
isr_err_stub 13
|
||||
isr_err_stub 14
|
||||
isr_no_err_stub 15
|
||||
isr_no_err_stub 16
|
||||
isr_err_stub 17
|
||||
isr_no_err_stub 18
|
||||
isr_no_err_stub 19
|
||||
isr_no_err_stub 20
|
||||
isr_no_err_stub 21
|
||||
isr_no_err_stub 22
|
||||
isr_no_err_stub 23
|
||||
isr_no_err_stub 24
|
||||
isr_no_err_stub 25
|
||||
isr_no_err_stub 26
|
||||
isr_no_err_stub 27
|
||||
isr_no_err_stub 28
|
||||
isr_no_err_stub 29
|
||||
isr_err_stub 30
|
||||
isr_no_err_stub 31
|
||||
|
||||
irq_stub 0
|
||||
irq_stub 1
|
||||
irq_stub 2
|
||||
irq_stub 3
|
||||
irq_stub 4
|
||||
irq_stub 5
|
||||
irq_stub 6
|
||||
irq_stub 7
|
||||
irq_stub 8
|
||||
irq_stub 9
|
||||
irq_stub 10
|
||||
irq_stub 11
|
||||
irq_stub 12
|
||||
irq_stub 13
|
||||
irq_stub 14
|
||||
irq_stub 15
|
||||
|
||||
global isr_stub_table
|
||||
isr_stub_table:
|
||||
%assign i 0
|
||||
%rep 32
|
||||
dd isr_stub_%+i
|
||||
%assign i i+1
|
||||
%endrep
|
||||
|
||||
global irq_stub_table
|
||||
irq_stub_table:
|
||||
%assign i 0
|
||||
%rep 16
|
||||
dd irq_stub_%+i
|
||||
%assign i i+1
|
||||
%endrep
|
||||
Reference in New Issue
Block a user