- Initial checkin of the freebios2 tree

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/console/printk.c

@@ -0,0 +1,56 @@
+/*
+ *  blantantly copied from linux/kernel/printk.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif
+
+//typedef void * va_list;
+
+#include <stdarg.h>
+#include <smp/spinlock.h>
+#include <console/console.h>
+
+/* printk's without a loglevel use this.. */
+#define DEFAULT_MESSAGE_LOGLEVEL 4 /* BIOS_WARNING */
+
+/* We show everything that is MORE important than this.. */
+#define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */
+
+/* Keep together for sysctl support */
+
+int console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+int default_message_loglevel = DEFAULT_MESSAGE_LOGLEVEL;
+int minimum_console_loglevel = MINIMUM_CONSOLE_LOGLEVEL;
+int default_console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+
+void display(char*);
+extern int vtxprintf(void (*)(unsigned char), const char *, va_list);
+
+spinlock_t console_lock = SPIN_LOCK_UNLOCKED;
+
+int do_printk(int msg_level, const char *fmt, ...)
+{
+	va_list args;
+	int i;
+
+	if (msg_level >= console_loglevel) {
+		return 0;
+	}
+
+	spin_lock(&console_lock);
+
+	va_start(args, fmt);
+	i = vtxprintf(console_tx_byte, fmt, args);
+	va_end(args);
+
+	console_tx_flush();
+
+	spin_unlock(&console_lock);
+
+	return i;
+}