amd64: remove the VGA text mode driver

3 files changed, 1 insertions, 41 deletions

diff --git a/src/kernel/arch/amd64/tty/tty.c b/src/kernel/arch/amd64/tty/tty.c
index fcd4675..6730800 100644
--- a/src/kernel/arch/amd64/tty/tty.c
+++ b/src/kernel/arch/amd64/tty/tty.c
@@ -4,15 +4,11 @@
 #include <shared/printf.h>
 
 void tty_init(void) {
-	vga_clear();
 	serial_preinit();
-
-	vga_write("\x03 ", 2); // cp437 heart
 	serial_write("<3 ", 3);
 }
 
-static void backend(void __attribute__((unused))  *arg, const char *buf, size_t len) {
-	vga_write(buf, len);
+static void backend(void __attribute__((unused)) *arg, const char *buf, size_t len) {
 	serial_write(buf, len);
 }
 
diff --git a/src/kernel/arch/amd64/tty/tty.h b/src/kernel/arch/amd64/tty/tty.h
index b96003d..a8f594c 100644
--- a/src/kernel/arch/amd64/tty/tty.h
+++ b/src/kernel/arch/amd64/tty/tty.h
@@ -1,7 +1,4 @@
 #pragma once
 #include <stddef.h>
 
-void vga_write(const char *buf, size_t len);
-void vga_clear(void);
-
 void tty_init(void);
diff --git a/src/kernel/arch/amd64/tty/vga.c b/src/kernel/arch/amd64/tty/vga.c
deleted file mode 100644
index e5f2274..0000000
--- a/src/kernel/arch/amd64/tty/vga.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <kernel/arch/amd64/tty/tty.h>
-
-struct vga_cell {
-	unsigned char c;
-	unsigned char style;
-} __attribute__((__packed__));
-
-static const size_t     vga_len = 80 * 25;
-static struct vga_cell *vga     = (void*) 0xB8000;
-static size_t           vga_pos = 0;
-
-static void vga_scroll(void) {
-	for (size_t i = 0; i < vga_len - 80; i++)
-		vga[i] = vga[i + 80];
-	vga_pos -= 80;
-}
-
-static void vga_putchar(char c) {
-	if (vga_pos >= vga_len - 80)
-		vga_scroll();
-	vga[vga_pos++].c = c;
-}
-
-void vga_write(const char *buf, size_t len) {
-	for (size_t i = 0; i < len; i++)
-		vga_putchar(buf[i]);
-}
-
-void vga_clear(void) {
-	for (size_t i = 0; i < vga_len; i++)
-		vga[i].c = ' ';
-	vga_pos = 0;
-}