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path: root/src/linux/timer.c
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* linux: Use Unix signals to notify when a timer is pendingKevin O'Connor2021-11-021-23/+87
| | | | | | | Use Unix signals in software timer implementation. This makes the code a little more efficient. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Don't use timer_repeat_until for linux "irq" pollingKevin O'Connor2021-04-211-29/+9
| | | | | | Use a simpler counter system to prioritize tasks and irqs when busy. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Rework timer_check_periodic() to use ticksKevin O'Connor2021-04-191-11/+11
| | | | | | Avoid using a 'struct timespec' to simplify the code. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Move timer fields into a structKevin O'Connor2021-04-191-31/+37
| | | | | | Storing the fields in a struct allows gcc to optimize memory pointers. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Avoid calling timer_read_time() in timer_dispatch() when not neededKevin O'Connor2021-04-181-3/+15
| | | | | | | The timer_read_time() call can be expensive - when the next timer is definitely pending, avoid making that call. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Simplify timer dispatch codeKevin O'Connor2021-04-181-54/+50
| | | | | | | | Implement rescheduling math using the simple 32-bit timer instead of the Unix timespec struct. This makes the code simpler and doesn't adversely impact the overall performance. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Fix local timer_repeat_until cache in timer.cKevin O'Connor2021-04-181-1/+1
| | | | | | | Make sure to update the local copy of timer_repeat_until when updating it. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Wait in timer dispatch for up to 2usKevin O'Connor2020-06-071-2/+2
| | | | | | | Use 2us in the linux timer dispatch code to unify linux timer dispatch logic with the common timer_irq.c code. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: add support for Linux hardware PWMJanne Grunau2019-04-051-3/+0
| | | | | | | | | | 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>
* command: Always pass a string to the DECL_CONSTANT() macroKevin O'Connor2019-03-171-1/+1
| | | | | | | | Make it clear that the name of the constant being defined is a string. When the value being defined is also a string, use a new DECL_CONSTANT_STR() macro. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Remove unneeded includes from timer.cKevin O'Connor2017-10-231-2/+0
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Don't shutdown on a "timer in the past" if already shutdownKevin O'Connor2017-10-121-3/+2
| | | | | | A shutdown will not help if the mcu is already in a shutdown state. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* linux: Initial support for running Klipper in a Linux real-time processKevin O'Connor2017-09-201-0/+233
Add support for compiling the Klipper micro-controller code as a real-time process capable of running on standard Linux systems. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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