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Changed camelCase to snake_case

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Tom-on
2025-04-27 19:18:33 +02:00
parent 7b5efc1837
commit 1bc758f3c1
24 changed files with 272 additions and 213 deletions
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kernel/src/tty.c
+39 -35
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@@ -4,24 +4,28 @@
#include <tty.h>
struct {
size_t row;
size_t col;
uint8_t attr;
size_t row;
size_t col;
uint8_t attr;
uint8_t* buf;
size_t updateWait;
} ctx;
/*
* This is for the tty_update_cursor() function. It makes sure we don't update
* the cursor if we don't need to, because it's slow due to I/O port writes.
*/
size_t update_wait;
} tty_ctx;
int tty_init(void) {
// Map VGA Text memory to KERNEL_FRAMEBUF
size_t pagecount = dceil(VGA_WIDTH * VGA_HEIGHT * 2, PAGE_SIZE);
for (size_t i = 0; i < pagecount; i++) {
pag_mapPage(KERNEL_FRAMEBUF + i * PAGE_SIZE, VGA_MEMORY + i * PAGE_SIZE, 0);
size_t page_count = dceil(VGA_WIDTH * VGA_HEIGHT * 2, PAGE_SIZE);
for (size_t i = 0; i < page_count; i++) {
pag_map(KERNEL_FRAMEBUF + i * PAGE_SIZE, VGA_MEMORY + i * PAGE_SIZE, 0);
}
ctx.row = 0;
ctx.col = 0;
ctx.attr = 0x07;
ctx.buf = (uint8_t*)KERNEL_FRAMEBUF;
tty_ctx.row = 0;
tty_ctx.col = 0;
tty_ctx.attr = 0x07;
tty_ctx.buf = (uint8_t*)KERNEL_FRAMEBUF;
tty_clear();
return 0;
@@ -29,34 +33,34 @@ int tty_init(void) {
void tty_clear(void) {
for (int i = 0; i < VGA_WIDTH * VGA_HEIGHT; i++) {
ctx.buf[i * 2] = ' ';
ctx.buf[i * 2 + 1] = ctx.attr;
tty_ctx.buf[i * 2] = ' ';
tty_ctx.buf[i * 2 + 1] = tty_ctx.attr;
}
}
void tty_setattr(uint8_t attr) {
ctx.attr = attr;
void tty_set_attr(uint8_t attr) {
tty_ctx.attr = attr;
}
void tty_enableCursor(uint8_t start, uint8_t end) {
void tty_show_cursor(uint8_t start, uint8_t end) {
outb(0x3d4, 0x0a);
outb(0x3d5, (inb(0x3d5) & 0xc0) | start);
outb(0x3d4, 0x0b);
outb(0x3d5, (inb(0x3d5) & 0xe0) | end);
}
void tty_disableCursor(void) {
void tty_hide_cursor(void) {
outb(0x3d4, 0x0a);
outb(0x3d5, 0x20);
}
void tty_updateCursor(void) {
if (ctx.updateWait > 0) {
ctx.updateWait--;
void tty_update_cursor(void) {
if (tty_ctx.update_wait > 0) {
tty_ctx.update_wait--;
return;
}
uint16_t pos = ctx.row * VGA_WIDTH + ctx.col;
uint16_t pos = tty_ctx.row * VGA_WIDTH + tty_ctx.col;
outb(0x3d4, 0x0f);
outb(0x3d5, (uint8_t)pos);
outb(0x3d4, 0x0e);
@@ -65,37 +69,37 @@ void tty_updateCursor(void) {
// TODO:
void tty_scroll(void) {
ctx.row = 0;
ctx.col = 0;
tty_ctx.row = 0;
tty_ctx.col = 0;
tty_clear();
}
void tty_putat(char c, size_t row, size_t col) {
size_t i = row * VGA_WIDTH + col;
ctx.buf[i * 2] = c;
ctx.buf[i * 2 + 1] = ctx.attr;
tty_ctx.buf[i * 2] = c;
tty_ctx.buf[i * 2 + 1] = tty_ctx.attr;
}
void tty_putc(char c) {
if (c == '\n') {
ctx.col = 0;
ctx.row++;
tty_ctx.col = 0;
tty_ctx.row++;
goto scroll_check;
}
tty_putat(c, ctx.row, ctx.col++);
if (ctx.col >= VGA_WIDTH) {
ctx.col = 0;
ctx.row++;
tty_putat(c, tty_ctx.row, tty_ctx.col++);
if (tty_ctx.col >= VGA_WIDTH) {
tty_ctx.col = 0;
tty_ctx.row++;
}
scroll_check:
if (ctx.row >= VGA_HEIGHT) tty_scroll();
tty_updateCursor();
if (tty_ctx.row >= VGA_HEIGHT) tty_scroll();
tty_update_cursor();
}
void tty_write(char* buf, size_t len) {
ctx.updateWait = len - 1;
tty_ctx.update_wait = len - 1;
for (size_t i = 0; i < len; i++) tty_putc(buf[i]);
}