Change of vterm handling logic on backend chardev input event (#40)

[lunaix-os.git] / lunaix-os / kernel / tty / tty.c

diff --git a/lunaix-os/kernel/tty/tty.c b/lunaix-os/kernel/tty/tty.c
deleted file mode 100644 (file)
index bef5c5a..0000000
--- a/lunaix-os/kernel/tty/tty.c
+++ /dev/null
@@ -1,78 +0,0 @@
-#include <libc/string.h>
-#include <lunaix/tty/tty.h>
-#include <stdint.h>
-
-#define TTY_WIDTH 80
-#define TTY_HEIGHT 25
-
-vga_attribute* buffer = (vga_attribute*)0xB8000;
-
-vga_attribute theme_color = VGA_COLOR_BLACK;
-
-uint32_t tty_x = 0;
-uint16_t tty_y = 0;
-
-void
-tty_set_theme(vga_attribute fg, vga_attribute bg)
-{
-    theme_color = (bg << 4 | fg) << 8;
-}
-
-void
-tty_put_char(char chr)
-{
-    switch (chr) {
-        case '\t':
-            tty_x += 4;
-            break;
-        case '\n':
-            tty_x = 0;
-            tty_y++;
-            break;
-        case '\r':
-            tty_x = 0;
-            break;
-        default:
-            *(buffer + tty_x + tty_y * TTY_WIDTH) = (theme_color | chr);
-            tty_x++;
-            break;
-    }
-
-    if (tty_x >= TTY_WIDTH) {
-        tty_x = 0;
-        tty_y++;
-    }
-    if (tty_y >= TTY_HEIGHT) {
-        tty_scroll_up();
-    }
-}
-
-void
-tty_put_str(char* str)
-{
-    while (*str != '\0') {
-        tty_put_char(*str);
-        str++;
-    }
-}
-
-void
-tty_scroll_up()
-{
-    size_t last_line = TTY_WIDTH * (TTY_HEIGHT - 1);
-    memcpy(buffer, buffer + TTY_WIDTH, last_line);
-    for (size_t i = 0; i < TTY_WIDTH; i++) {
-        *(buffer + i + last_line) = theme_color;
-    }
-    tty_y = tty_y == 0 ? 0 : tty_y - 1;
-}
-
-void
-tty_clear()
-{
-    for (uint32_t i = 0; i < TTY_WIDTH * TTY_HEIGHT; i++) {
-        *(buffer + i) = theme_color;
-    }
-    tty_x = 0;
-    tty_y = 0;
-}
\ No newline at end of file