rename TTY driver to vgatext

1 files changed, 0 insertions, 124 deletions

diff --git a/drivers/tty.c b/drivers/tty.c
deleted file mode 100644
index a77071b..0000000
--- a/drivers/tty.c
+++ /dev/null
@@ -1,124 +0,0 @@
-#include <stdint.h>
-#include <stdio.h>
-#include "gfx.h"
-#include "io.h"
-#include "panic.h"
-#include "tty.h"
-
-static int term_x, term_y;
-static uint8_t term_col;
-/* VGA buffer starts at 0xB8000 on color or 0xB0000 on monochrome */
-static uint16_t *term_buf;
-
-static uint16_t video_detect_hardware(void)
-{
-    const uint16_t *ptr = (const uint16_t*)0x410;
-    return *ptr;
-}
-
-void tty_init(void)
-{
-    uint16_t vid_type = video_detect_hardware() & 0x30;
-    if(vid_type == 0x20)
-    {
-        /* color */
-        term_buf = (uint16_t*)0xB8000;
-    }
-    else if(vid_type == 0x30)
-    {
-        term_buf = (uint16_t*)0xB0000;
-    }
-    else
-    {
-        /* none */
-        panic("TTY init failed!");
-    }
-    tty_set_color(VGA_MAKE_COLOR(VGA_LIGHT_GRAY, VGA_BLACK));
-    tty_clear();
-    set_putchar(tty_putchar);
-    set_puts(tty_puts);
-}
-
-static void move_cursor(uint16_t cursor_idx)
-{
-    outb(0x3D4, 14);
-    outb(0x3D5, cursor_idx >> 8); // high byte
-    outb(0x3D4, 15);
-    outb(0x3D5, cursor_idx); // low byte
-}
-
-static void update_cursor(void)
-{
-    move_cursor(term_y * VGA_WIDTH + term_x);
-}
-
-void tty_clear(void)
-{
-    term_x = 0;
-    term_y = 0;
-    for(int y = 0; y < VGA_HEIGHT; ++y)
-    {
-        for(int x = 0; x < VGA_WIDTH; ++x)
-        {
-            term_buf[y * VGA_WIDTH + x] = VGA_MAKE_ENTRY(' ', term_col);
-        }
-    }
-}
-
-void tty_set_color(uint8_t color)
-{
-    term_col = color;
-}
-
-uint8_t tty_get_color(void)
-{
-    return term_col;
-}
-
-void tty_putchar_at(int ch, uint8_t col, int x, int y)
-{
-    term_buf[y * VGA_WIDTH + x] = VGA_MAKE_ENTRY((char)ch, col);
-}
-
-void tty_putchar(int ch)
-{
-    if(ch != '\n' && ch != '\b')
-    {
-        tty_putchar_at(ch, term_col, term_x, term_y);
-        if(++term_x == VGA_WIDTH)
-        {
-            term_x = 0;
-            if(++term_y == VGA_HEIGHT)
-            {
-                tty_clear();
-                term_y = 0;
-            }
-        }
-    }
-    else if(ch == '\n')
-    {
-        term_x = 0;
-        if(++term_y == VGA_HEIGHT)
-        {
-            tty_clear();
-            term_y = 0;
-        }
-    }
-    else if(ch == '\b')
-    {
-        int temp_x = term_x - 1;
-        if(temp_x >= 0)
-            term_x = temp_x;
-        tty_putchar_at(' ', term_col, term_x, term_y);
-    }
-
-    update_cursor();
-}
-
-void tty_puts(const char *str)
-{
-    while(*str)
-    {
-        tty_putchar(*str++);
-    }
-}