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* pru: Support config_reset command to manually reset mcuKevin O'Connor2017-09-031-0/+1
| | | | | | | Add support for resetting the MCU via a software only mechanism. This is useful on the PRU. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Implement generic sleep mechanism based on tasks pendingKevin O'Connor2017-08-081-0/+1
| | | | | | | | | Track when tasks are pending and spin in irq_wait() when no tasks are pending. This improves the mechanism for sleeping the processor - it's simpler for the board specific code and it reduces the possibility of the processor sleeping when tasks are busy. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Introduce sched_wake_tasks() function to wake up tasksKevin O'Connor2017-08-081-0/+1
| | | | | | | | Add function to indicate when tasks need to be run. This will allow the scheduler code to know if there are any tasks that need to be processed. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Don't count milliseconds in the periodic timerKevin O'Connor2017-08-081-1/+7
| | | | | | | It's not necessary to keep a millisecond counter. Replace the two users of sched_check_periodic() with explicit task wakeup flags. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* build: Use compile_time_request system for init, tasks, and shutdownKevin O'Connor2017-05-261-14/+6
| | | | | | | | Avoid using linker magic to define the init, task, and shutdown functions. Instead, use the compile_time_request system. This simplifies the build and produces more efficient code. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Allow shutdown_reason to be uint8Kevin O'Connor2017-05-261-5/+4
| | | | | | | Store the shutdown_reason code in an 8-bit integer - this produces better code on AVR. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Move timer dispatch loop to board codeKevin O'Connor2017-03-301-1/+1
| | | | | | | | Rename sched_timer_kick() to sched_timer_dispatch() and move its loop into its callers in the board code. This eliminates the need to export timer_try_set_next() from the board code. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* timer: Allow board code to define its own timer_is_before implementationKevin O'Connor2017-03-261-3/+0
| | | | | | | | | | | | Move sched_is_before() from sched.c to timer_is_before() in the board specific timer code. This allows the board code to provide its own definition. Also, remove the sched_from_us() and sched_read_time() wrapper functions and change the callers to directly invoke timer_from_us() / timer_read_time(). Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Rename sched_timer() to sched_add_timer()Kevin O'Connor2017-03-111-2/+2
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* build: Update declfuncs.lds.S to only use progmem sections on AVRKevin O'Connor2016-06-141-1/+1
| | | | | | | On non-avr platforms the declfunc stuff still needs to be in the binary in a rodata section. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Use 'unsigned int' instead of 'uint16_t' for shutdown reasonKevin O'Connor2016-06-141-2/+2
| | | | | | | Use 'unsigned int' instead of 'uint16_t' as is faster on some platforms. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Use uint_fast8_t for return type of timersKevin O'Connor2016-06-141-1/+1
| | | | | | | | Some architectures are faster passing regular integers than 8bit integers. Use uint_fast8_t so that the architecture chooses the appropriate type. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* sched: Change sched_from_ms() to sched_from_us()Kevin O'Connor2016-06-021-1/+1
| | | | | | | Some code may require micro-second precision so update sched_from_ms() to use micro-seconds. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* Initial commit of source code.Kevin O'Connor2016-05-251-0/+51
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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