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authorMaciej W. Rozycki <macro@linux-mips.org>2008-02-07 00:15:12 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 08:42:24 -0800
commit54c0f37e9a200d74ec43cffa6526d9ad17a388a7 (patch)
treebe288402e111b2b20350c296ccc325eda660f616 /drivers/serial/dz.h
parent43d46ab1cdeb12b8d072cfdf84956073a1fa8866 (diff)
downloadop-kernel-dev-54c0f37e9a200d74ec43cffa6526d9ad17a388a7.zip
op-kernel-dev-54c0f37e9a200d74ec43cffa6526d9ad17a388a7.tar.gz
dz: handle special conditions on reception correctly
Handle the read and ignore status masks correctly. Handle the BREAK condition as expected: a framing error with a null character is a BREAK, any other framing error is a framing error indeed. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial/dz.h')
-rw-r--r--drivers/serial/dz.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/serial/dz.h b/drivers/serial/dz.h
index 6b34d50..1e836c3 100644
--- a/drivers/serial/dz.h
+++ b/drivers/serial/dz.h
@@ -33,6 +33,8 @@
#define DZ_FERR 0x2000 /* Frame error indicator */
#define DZ_PERR 0x1000 /* Parity error indicator */
+#define DZ_BREAK 0x0800 /* BREAK event software flag */
+
#define LINE(x) ((x & DZ_LINE_MASK) >> 8) /* Get the line number
from the input buffer */
#define UCHAR(x) ((unsigned char)(x & DZ_RBUF_MASK))
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