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| author | Graeme Russ <graeme.russ@gmail.com> | 2011-08-29 02:14:05 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-01 21:54:49 +0200 |
| commit | e3e454cd72f319908355427b1a3ae54b3dd53356 (patch) | |
| tree | b461a0dc8287aa0c7d3e3eab525cd4f76c27481a /common/console.c | |
| parent | 79df1208ee6984aa63468673c042667d121bb0bc (diff) | |
| download | u-boot-imx-e3e454cd72f319908355427b1a3ae54b3dd53356.zip u-boot-imx-e3e454cd72f319908355427b1a3ae54b3dd53356.tar.gz u-boot-imx-e3e454cd72f319908355427b1a3ae54b3dd53356.tar.bz2 | |
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>
Diffstat (limited to 'common/console.c')
| -rw-r--r-- | common/console.c | 18 |
1 files changed, 18 insertions, 0 deletions
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 @@ int getc(void) 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 @@ int tstc(void) 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 @@ void putc(const char c) 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 @@ void puts(const char *s) 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 @@ int printf(const char *fmt, ...) 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 @@ int vprintf(const char *fmt, va_list args) 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. */ |