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| author | Rong Chang <rongchang@chromium.org> | 2012-03-02 20:06:57 +0800 |
|---|---|---|
| committer | Rong Chang <rongchang@chromium.org> | 2012-03-03 14:11:35 +0800 |
| commit | fe1f1c2d21a22e8fa8efcbdabdf9dafcd02b4e67 (patch) | |
| tree | d75183854d4e7f518f8b34e1d6096199e7076a58 /common/uart_buffering.c | |
| parent | 5877a40923baadc1e76ca9c9109597329de12760 (diff) | |
| download | chrome-ec-fe1f1c2d21a22e8fa8efcbdabdf9dafcd02b4e67.tar.gz | |
Add %b format output via uart_printf
Useful when debug dump binary flags.
BUG=chrome-os-partner:8287
TEST=none
Change-Id: I646d80befafca07074847f2f09eeb23126533f67
Diffstat (limited to 'common/uart_buffering.c')
| -rw-r--r-- | common/uart_buffering.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/common/uart_buffering.c b/common/uart_buffering.c index b9c7f6d1ff..5f6580d73c 100644 --- a/common/uart_buffering.c +++ b/common/uart_buffering.c @@ -385,7 +385,10 @@ int uart_printf(const char *format, ...) { static const char int_chars[] = "0123456789abcdef"; static const char error_str[] = "ERROR"; - char intbuf[21]; /* Longest uint64 */ + char intbuf[33]; + /* Longest uint64 in decimal = 20 + * longest uint32 in binary = 32 + */ int dropped_chars = 0; int is_left; int pad_zero; @@ -468,8 +471,11 @@ int uart_printf(const char *format, ...) break; case 'x': case 'p': - base = 16; - break; + base = 16; + break; + case 'b': + base = 2; + break; default: format = error_str; } |