console: Squelch pre-console output in console functions
There are some locations in the code which anticipate printf() being called
before the console is ready by squelching printf() on gd->have_console.
Move this squelching into printf(), vprintf(), puts() and putc(). Also
make tstc() and getc() return 0 if console is not yet initialised
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
Tested-by: Simon Glass <sjg@chromium.org>
diff --git a/common/console.c b/common/console.c
index 8c650e0..b23d933 100644
--- a/common/console.c
+++ b/common/console.c
@@ -298,6 +298,9 @@
return 0;
#endif
+ if (!gd->have_console)
+ return 0;
+
if (gd->flags & GD_FLG_DEVINIT) {
/* Get from the standard input */
return fgetc(stdin);
@@ -314,6 +317,9 @@
return 0;
#endif
+ if (!gd->have_console)
+ return 0;
+
if (gd->flags & GD_FLG_DEVINIT) {
/* Test the standard input */
return ftstc(stdin);
@@ -335,6 +341,9 @@
return;
#endif
+ if (!gd->have_console)
+ return;
+
if (gd->flags & GD_FLG_DEVINIT) {
/* Send to the standard output */
fputc(stdout, c);
@@ -356,6 +365,9 @@
return;
#endif
+ if (!gd->have_console)
+ return;
+
if (gd->flags & GD_FLG_DEVINIT) {
/* Send to the standard output */
fputs(stdout, s);
@@ -371,6 +383,9 @@
uint i;
char printbuffer[CONFIG_SYS_PBSIZE];
+ if (!gd->have_console)
+ return 0;
+
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
@@ -389,6 +404,9 @@
uint i;
char printbuffer[CONFIG_SYS_PBSIZE];
+ if (!gd->have_console)
+ return 0;
+
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/