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| author | Janne Grunau <janne-3d@jannau.net> | 2019-03-24 10:25:56 +0100 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2019-04-05 19:06:15 -0400 |
| commit | aab89e7f85d01fffb349b2046daebdc0deb1ce92 (patch) | |
| tree | c875725a48bce1170d6039103671f7331cb1fda1 /src/linux/internal.h | |
| parent | e6c3eeafd79cac08172377f447c1dd963b5cb530 (diff) | |
| download | kutter-aab89e7f85d01fffb349b2046daebdc0deb1ce92.tar.gz kutter-aab89e7f85d01fffb349b2046daebdc0deb1ce92.tar.xz kutter-aab89e7f85d01fffb349b2046daebdc0deb1ce92.zip | |
linux: add support for Linux hardware PWM
The replicape servo pins (P9_14/P9_16) are muxed to the SOCs hardware
PWM unit driven by a 13MHz GP timer. They have to be driven by the
linux host mcu. This commits adds hardware PWM support using the linux
sysfs user space interface.
Signed-off-by: Janne Grunau <janne-3d@jannau.net>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/linux/internal.h')
| -rw-r--r-- | src/linux/internal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/linux/internal.h b/src/linux/internal.h index b9e77d18..b47426b3 100644 --- a/src/linux/internal.h +++ b/src/linux/internal.h @@ -3,6 +3,10 @@ // Local definitions for micro-controllers running on linux #include <time.h> // struct timespec +#include "autoconf.h" // CONFIG_CLOCK_FREQ + +#define NSECS 1000000000 +#define NSECS_PER_TICK (NSECS / CONFIG_CLOCK_FREQ) // console.c void report_errno(char *where, int rc); |