kernel: port init's `printf` implementation

1 files changed, 13 insertions, 4 deletions

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;
+}