[SeaBIOS] [PATCH v2] Fix serial port flushing code.
Kevin O'Connor
kevin at koconnor.net
Sun Jul 10 01:36:50 CEST 2011
debug_serial() was doing a full flush while debug_serial_flush() was
only doing a partial flush. Fix that.
---
Changes from v1 - fix bit math so it actually checks the correct bit.
---
src/output.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/output.c b/src/output.c
index 5c91ae5..462ffb7 100644
--- a/src/output.c
+++ b/src/output.c
@@ -49,7 +49,7 @@ debug_serial(char c)
if (!CONFIG_DEBUG_SERIAL)
return;
int timeout = DEBUG_TIMEOUT;
- while ((inb(CONFIG_DEBUG_SERIAL_PORT+SEROFF_LSR) & 0x60) != 0x60)
+ while ((inb(CONFIG_DEBUG_SERIAL_PORT+SEROFF_LSR) & 0x20) != 0x20)
if (!timeout--)
// Ran out of time.
return;
@@ -63,7 +63,7 @@ debug_serial_flush(void)
if (!CONFIG_DEBUG_SERIAL)
return;
int timeout = DEBUG_TIMEOUT;
- while ((inb(CONFIG_DEBUG_SERIAL_PORT+SEROFF_LSR) & 0x40) != 0x40)
+ while ((inb(CONFIG_DEBUG_SERIAL_PORT+SEROFF_LSR) & 0x60) != 0x60)
if (!timeout--)
// Ran out of time.
return;
--
1.7.4.4
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