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| author | Vincent Mailhol <mailhol.vincent@wanadoo.fr> | 2021-03-06 14:40:40 +0900 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-03-30 11:14:45 +0200 |
| commit | 1d7750760b70ba8b0e641146eee1b3a343d1b292 (patch) | |
| tree | 18a32fdd433f6d66cdfbb486426fc652777426ed /include/linux/can | |
| parent | c25cc7993243fdc00ab7e608e3764819538015ab (diff) | |
| download | linux-1d7750760b70ba8b0e641146eee1b3a343d1b292.tar.gz linux-1d7750760b70ba8b0e641146eee1b3a343d1b292.tar.bz2 linux-1d7750760b70ba8b0e641146eee1b3a343d1b292.zip | |
can: bittiming: add CAN_KBPS, CAN_MBPS and CAN_MHZ macros
Add three macro to simplify the readability of big bit timing numbers:
- CAN_KBPS: kilobits per second (one thousand)
- CAN_MBPS: megabits per second (one million)
- CAN_MHZ: megahertz per second (one million)
Example:
u32 bitrate_max = 8 * CAN_MBPS;
struct can_clock clock = {.freq = 80 * CAN_MHZ};
instead of:
u32 bitrate_max = 8000000;
struct can_clock clock = {.freq = 80000000};
Apply the new macro to driver/net/can/dev/bittiming.c.
Link: https://lore.kernel.org/r/20210306054040.76483-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/linux/can')
| -rw-r--r-- | include/linux/can/bittiming.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/can/bittiming.h b/include/linux/can/bittiming.h index 3c4cad7b52c0..ae7a3411167c 100644 --- a/include/linux/can/bittiming.h +++ b/include/linux/can/bittiming.h @@ -11,6 +11,14 @@ #define CAN_SYNC_SEG 1 + +/* Kilobits and Megabits per second */ +#define CAN_KBPS 1000UL +#define CAN_MBPS 1000000UL + +/* Megahertz */ +#define CAN_MHZ 1000000UL + /* * struct can_tdc - CAN FD Transmission Delay Compensation parameters * |