Add PBL console support

This adds simple console support to the PBL which makes it
possible to print more complex messages in the PBL than just
strings or hex numbers. For now puts_ll is used to print the
messages, so it depends on CONFIG_DEBUG_LL which makes it
more a debugging option. However, this could be extended later
to get regular output from the PBL if desired.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 11 insertions, 9 deletions

diff --git a/include/stdio.h b/include/stdio.h
index 71dbae35ca..f190911762 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -29,8 +29,6 @@ int	getc(void);
 int	console_puts(unsigned int ch, const char *s);
 void	console_flush(void);
 
-
-int	printf(const char *fmt, ...) __attribute__ ((format(__printf__, 1, 2)));
 int	vprintf(const char *fmt, va_list args);
 #else
 static inline int tstc(void)
@@ -52,13 +50,6 @@ static inline void console_putc(unsigned int ch, char c) {}
 
 static inline void console_flush(void) {}
 
-static int printf(const char *fmt, ...) __attribute__ ((format(__printf__, 1, 2)));
-static inline int printf(const char *fmt, ...)
-{
-	return 0;
-}
-
-
 static inline int vprintf(const char *fmt, va_list args)
 {
 	return 0;
@@ -74,6 +65,17 @@ static inline int ctrlc (void)
 
 #endif
 
+#if (!defined(__PBL__) && !defined(CONFIG_CONSOLE_NONE)) || \
+	(defined(__PBL__) && defined(CONFIG_PBL_CONSOLE))
+int printf(const char *fmt, ...) __attribute__ ((format(__printf__, 1, 2)));
+#else
+static int printf(const char *fmt, ...) __attribute__ ((format(__printf__, 1, 2)));
+static inline int printf(const char *fmt, ...)
+{
+	return 0;
+}
+#endif
+
 static inline int puts(const char *s)
 {
 	return console_puts(CONSOLE_STDOUT, s);