From 2eead2f6eab2aa1fbc727ce28d9fa9a8e90a1eec Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Thu, 14 Apr 2022 12:19:51 +0200
Subject: kernel: port init's `printf` implementation

---
 src/kernel/arch/i386/tty/tty.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

(limited to 'src/kernel/arch/i386/tty/tty.c')

diff --git a/src/kernel/arch/i386/tty/tty.c b/src/kernel/arch/i386/tty/tty.c
index fa3ce72..d4a97fb 100644
--- a/src/kernel/arch/i386/tty/tty.c
+++ b/src/kernel/arch/i386/tty/tty.c
@@ -1,17 +1,26 @@
+#include <kernel/arch/generic.h>
 #include <kernel/arch/i386/driver/serial.h>
 #include <kernel/arch/i386/tty/vga.h>
-#include <kernel/arch/io.h>
+#include <shared/printf.h>
 
 void tty_init(void) {
 	vga_clear();
 	serial_init();
 
-	// write hearts
-	vga_write("\x03 ", 2);
+	vga_write("\x03 ", 2); // cp437 heart
 	serial_write("<3 ", 3);
 }
 
-void tty_write(const char *buf, size_t len) {
+static void backend(void *arg, const char *buf, size_t len) {
 	vga_write(buf, len);
 	serial_write(buf, len);
 }
+
+int kprintf(const char *fmt, ...) {
+	int ret;
+	va_list argp;
+	va_start(argp, fmt);
+	ret = __printf_internal(fmt, argp, backend, NULL);
+	va_end(argp);
+	return ret;
+}
-- 
cgit v1.2.3