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authorOliver Hartkopp <socketcan@hartkopp.net>2019-08-10 21:18:09 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2019-08-13 17:32:21 +0200
commite9dc7c60507c822992e793bd3845f0556ae0ff98 (patch)
tree2d9e682898f8756e4871e31001736ab8f3cbe820 /include
parent21468e6de80e2e3584024f796e3c0ce8b12474bd (diff)
downloadlinux-next-e9dc7c60507c822992e793bd3845f0556ae0ff98.tar.gz
can: gw: use struct canfd_frame as internal data structure
To prepare the CAN FD support this patch implements the first adaptions in data structures for CAN FD without changing the current functionality. Additionally some code at the end of this patch is moved or indented to simplify the review of the next implementation step. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/can/gw.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/uapi/linux/can/gw.h b/include/uapi/linux/can/gw.h
index 7bee7a0b9800..ed811bc463b5 100644
--- a/include/uapi/linux/can/gw.h
+++ b/include/uapi/linux/can/gw.h
@@ -93,10 +93,11 @@ enum {
/* CAN frame elements that are affected by curr. 3 CAN frame modifications */
#define CGW_MOD_ID 0x01
-#define CGW_MOD_DLC 0x02
+#define CGW_MOD_DLC 0x02 /* contains the data length in bytes */
+#define CGW_MOD_LEN CGW_MOD_DLC /* CAN FD length representation */
#define CGW_MOD_DATA 0x04
-#define CGW_FRAME_MODS 3 /* ID DLC DATA */
+#define CGW_FRAME_MODS 3 /* ID DLC/LEN DATA */
#define MAX_MODFUNCTIONS (CGW_MOD_FUNCS * CGW_FRAME_MODS)