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authorGreg Watson <jarrah@users.sourceforge.net>2003-11-09 23:03:46 +0000
committerGreg Watson <jarrah@users.sourceforge.net>2003-11-09 23:03:46 +0000
commitc8ee08a9bb7f3498ea1547991f314e990eb5463f (patch)
tree9e09910dd920da245b002111212d7ade0a922d77
parent1c5a7f198c345c7b78387c033a5fcb1557ee05d3 (diff)
downloadcoreboot-c8ee08a9bb7f3498ea1547991f314e990eb5463f.tar.xz
printk for init
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1267 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
-rw-r--r--src/arch/ppc/lib/printk_init.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/arch/ppc/lib/printk_init.c b/src/arch/ppc/lib/printk_init.c
new file mode 100644
index 0000000000..f1bc5c981f
--- /dev/null
+++ b/src/arch/ppc/lib/printk_init.c
@@ -0,0 +1,41 @@
+/*
+ * blantantly copied from linux/kernel/printk.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ */
+#include <stdarg.h>
+#include <console/loglevel.h>
+
+/* printk's without a loglevel use this.. */
+#define DEFAULT_MESSAGE_LOGLEVEL 4 /* BIOS_WARNING */
+
+/* Keep together for sysctl support */
+
+int console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+
+extern int vtxprintf(void (*)(unsigned char), const char *, va_list);
+extern void uart8250_tx_byte(unsigned, unsigned char);
+
+void console_tx_byte(unsigned char byte)
+{
+ if (byte == '\n')
+ uart8250_tx_byte(UART0_IO_BASE, '\r');
+ uart8250_tx_byte(UART0_IO_BASE, byte);
+}
+
+int do_printk(int msg_level, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ if (msg_level >= console_loglevel) {
+ return 0;
+ }
+
+ va_start(args, fmt);
+ i = vtxprintf(console_tx_byte, fmt, args);
+ va_end(args);
+
+ return i;
+}