linux-kernel - [PATCH 22/37] staging: comedi: add CMDF_ROUND_... as synonyms for TRIG_ROUND

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Date:	Wed,  3 Sep 2014 13:45:45 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	driverdev-devel@...uxdriverproject.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hartleys@...ionengravers.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 22/37] staging: comedi: add CMDF_ROUND_... as synonyms for TRIG_ROUND_...

The `TRIG_ROUND_...` macros are some of the values that can be OR-ed
into the `flags` member of `struct comedi_cmd`.  They may influence the
rounding of sample timings during operation of the asynchronous command.

The names are a bit of a left-over from earlier times.  It would be
better to use the names `CMDF_ROUND_...` to match various other command
flags.

Define `CMDF_ROUND_MASK`, `CMDF_ROUND_NEAREST`, `CMDF_ROUND_DOWN`,
`CMDF_ROUND_UP` and `CMDF_ROUND_UP_NEXT` with the same numeric values as
`TRIG_ROUND_MASK`, `TRIG_ROUND_NEAREST`, `TRIG_ROUND_DOWN`,
`TRIG_ROUND_UP` and `TRIG_ROUND_UP_NEXT`, and redefine the
`TRIG_ROUND_...` macros as synonyms of the `CMDF_ROUND_...` macros.

Signed-off-by: Ian Abbott <abbotti@....co.uk>
---
 drivers/staging/comedi/comedi.h | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
index 3d2801d..c8c99e6 100644
--- a/drivers/staging/comedi/comedi.h
+++ b/drivers/staging/comedi/comedi.h
@@ -142,23 +142,29 @@
 
 #define CMDF_RAWDATA		0x00000080
 
+/* timer rounding definitions */
+#define CMDF_ROUND_MASK		0x00030000
+#define CMDF_ROUND_NEAREST	0x00000000
+#define CMDF_ROUND_DOWN		0x00010000
+#define CMDF_ROUND_UP		0x00020000
+#define CMDF_ROUND_UP_NEXT	0x00030000
+
 #define COMEDI_EV_START		0x00040000
 #define COMEDI_EV_SCAN_BEGIN	0x00080000
 #define COMEDI_EV_CONVERT	0x00100000
 #define COMEDI_EV_SCAN_END	0x00200000
 #define COMEDI_EV_STOP		0x00400000
 
-#define TRIG_ROUND_MASK		0x00030000
-#define TRIG_ROUND_NEAREST	0x00000000
-#define TRIG_ROUND_DOWN		0x00010000
-#define TRIG_ROUND_UP		0x00020000
-#define TRIG_ROUND_UP_NEXT	0x00030000
-
 /* compatibility definitions */
 #define TRIG_BOGUS		CMDF_BOGUS
 #define TRIG_RT			CMDF_PRIORITY
 #define TRIG_WAKE_EOS		CMDF_WAKE_EOS
 #define TRIG_WRITE		CMDF_WRITE
+#define TRIG_ROUND_MASK		CMDF_ROUND_MASK
+#define TRIG_ROUND_NEAREST	CMDF_ROUND_NEAREST
+#define TRIG_ROUND_DOWN		CMDF_ROUND_DOWN
+#define TRIG_ROUND_UP		CMDF_ROUND_UP
+#define TRIG_ROUND_UP_NEXT	CMDF_ROUND_UP_NEXT
 
 /* trigger sources */
 
-- 
2.1.0

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